121010101022 has 4 divisors (see below), whose sum is σ = 181515151536. Its totient is φ = 60505050510.

The previous prime is 121010101019. The next prime is 121010101061. The reversal of 121010101022 is 220101010121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220101010121 = 661 ⋅332981861.

It is a junction number, because it is equal to n+sod(n) for n = 121010100994 and 121010101012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252525254 + ... + 30252525257.

It is an arithmetic number, because the mean of its divisors is an integer number (45378787884).

Almost surely, 2^121010101022 is an apocalyptic number.

121010101022 is a deficient number, since it is larger than the sum of its proper divisors (60505050514).

121010101022 is an equidigital number, since it uses as much as digits as its factorization.

121010101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60505050513.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121010101022 its reverse (220101010121), we get a palindrome (341111111143).

Subtracting 121010101022 from its reverse (220101010121), we obtain a palindrome (99090909099).

The spelling of 121010101022 in words is "one hundred twenty-one billion, ten million, one hundred one thousand, twenty-two".