1201102021 has 8 divisors (see below), whose sum is σ = 1432370304. Its totient is φ = 984754320.

The previous prime is 1201102013. The next prime is 1201102027. The reversal of 1201102021 is 1202011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201102021 - 2³ = 1201102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201101989 and 1201102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201102027) 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 7 ways as a sum of consecutive naturals, for example, 3729970 + ... + 3730291.

It is an arithmetic number, because the mean of its divisors is an integer number (179046288).

Almost surely, 2^1201102021 is an apocalyptic number.

It is an amenable number.

1201102021 is a deficient number, since it is larger than the sum of its proper divisors (231268283).

1201102021 is an equidigital number, since it uses as much as digits as its factorization.

1201102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460291.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1201102021 is about 34656.9188041868. The cubic root of 1201102021 is about 1062.9837674484.

Adding to 1201102021 its reverse (1202011021), we get a palindrome (2403113042).

The spelling of 1201102021 in words is "one billion, two hundred one million, one hundred two thousand, twenty-one".