1212022310101 has 4 divisors (see below), whose sum is σ = 1213008497100. Its totient is φ = 1211036123104.

The previous prime is 1212022310099. The next prime is 1212022310131. The reversal of 1212022310101 is 1010132202121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 860905622500 + 351116687601 = 927850^2 + 592551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212022310101 - 2¹ = 1212022310099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022310131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493091656 + ... + 493094113.

It is an arithmetic number, because the mean of its divisors is an integer number (303252124275).

Almost surely, 2^{1212022310101} is an apocalyptic number.

It is an amenable number.

1212022310101 is a deficient number, since it is larger than the sum of its proper divisors (986186999).

1212022310101 is an equidigital number, since it uses as much as digits as its factorization.

1212022310101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986186998.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212022310101 its reverse (1010132202121), we get a palindrome (2222154512222).

The spelling of 1212022310101 in words is "one trillion, two hundred twelve billion, twenty-two million, three hundred ten thousand, one hundred one".