121021121102002 has 48 divisors (see below), whose sum is σ = 201753526224600. Its totient is φ = 54399242304000.

The previous prime is 121021121101987. The next prime is 121021121102027. The reversal of 121021121102002 is 200201121120121.

It can be written as a sum of positive squares in 4 ways, for example, as 112472578985481 + 8548542116521 = 10605309^2 + 2923789^2 .

It is a super-2 number, since 2×121021121102002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17276074 + ... + 23248762.

Almost surely, 2^{121021121102002} is an apocalyptic number.

121021121102002 is a deficient number, since it is larger than the sum of its proper divisors (80732405122598).

121021121102002 is a wasteful number, since it uses less digits than its factorization.

121021121102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973643 (or 5973632 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121021121102002 its reverse (200201121120121), we get a palindrome (321222242222123).

The spelling of 121021121102002 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twenty-one million, one hundred two thousand, two".