1201002102221 has 24 divisors (see below), whose sum is σ = 1295357184000. Its totient is φ = 1110420747072.

The previous prime is 1201002102191. The next prime is 1201002102247. The reversal of 1201002102221 is 1222012001021.

It is a de Polignac number, because none of the positive numbers 2^k-1201002102221 is a prime.

It is a super-2 number, since 2×1201002102221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201002102196 and 1201002102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201002102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44919185 + ... + 44945913.

It is an arithmetic number, because the mean of its divisors is an integer number (53973216000).

Almost surely, 2^{1201002102221} is an apocalyptic number.

It is an amenable number.

1201002102221 is a deficient number, since it is larger than the sum of its proper divisors (94355081779).

1201002102221 is a wasteful number, since it uses less digits than its factorization.

1201002102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28113 (or 28070 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201002102221 its reverse (1222012001021), we get a palindrome (2423014103242).

The spelling of 1201002102221 in words is "one trillion, two hundred one billion, two million, one hundred two thousand, two hundred twenty-one".