121021211102 has 16 divisors (see below), whose sum is σ = 198045274752. Its totient is φ = 55006706520.

The previous prime is 121021211093. The next prime is 121021211161. The reversal of 121021211102 is 201112120121.

It is a super-2 number, since 2×121021211102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306023 + ... + 579389.

It is an arithmetic number, because the mean of its divisors is an integer number (12377829672).

Almost surely, 2^121021211102 is an apocalyptic number.

121021211102 is a deficient number, since it is larger than the sum of its proper divisors (77024063650).

121021211102 is a wasteful number, since it uses less digits than its factorization.

121021211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293503.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121021211102 its reverse (201112120121), we get a palindrome (322133331223).

The spelling of 121021211102 in words is "one hundred twenty-one billion, twenty-one million, two hundred eleven thousand, one hundred two".