22121002002111 has 64 divisors (see below), whose sum is σ = 31384084193280. Its totient is φ = 13820438471040.

The previous prime is 22121002002107. The next prime is 22121002002137. The reversal of 22121002002111 is 11120020012122.

It is not a de Polignac number, because 22121002002111 - 2² = 22121002002107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121002002191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1933141356 + ... + 1933152798.

It is an arithmetic number, because the mean of its divisors is an integer number (490376315520).

Almost surely, 2^{22121002002111} is an apocalyptic number.

22121002002111 is a deficient number, since it is larger than the sum of its proper divisors (9263082191169).

22121002002111 is a wasteful number, since it uses less digits than its factorization.

22121002002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22121002002111 its reverse (11120020012122), we get a palindrome (33241022014233).

The spelling of 22121002002111 in words is "twenty-two trillion, one hundred twenty-one billion, two million, two thousand, one hundred eleven".