2121102111202 has 12 divisors (see below), whose sum is σ = 3213466610418. Its totient is φ = 1050050540000.

The previous prime is 2121102111197. The next prime is 2121102111217. The reversal of 2121102111202 is 2021112011212.

It can be written as a sum of positive squares in 3 ways, for example, as 2082044099041 + 39058012161 = 1442929^2 + 197631^2 .

It is a super-2 number, since 2×2121102111202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51962299 + ... + 52003102.

Almost surely, 2^{2121102111202} is an apocalyptic number.

2121102111202 is a deficient number, since it is larger than the sum of its proper divisors (1092364499216).

2121102111202 is a wasteful number, since it uses less digits than its factorization.

2121102111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103965605 (or 103965504 counting only the distinct ones).

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

Adding to 2121102111202 its reverse (2021112011212), we get a palindrome (4142214122414).

The spelling of 2121102111202 in words is "two trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand, two hundred two".