20102201022111 has 16 divisors (see below), whose sum is σ = 29337890692320. Its totient is φ = 12167788763520.

The previous prime is 20102201022091. The next prime is 20102201022133. The reversal of 20102201022111 is 11122010220102.

It is not a de Polignac number, because 20102201022111 - 2¹⁴ = 20102201005727 is a prime.

It is a super-2 number, since 2×20102201022111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102201022151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4224924276 + ... + 4224929033.

It is an arithmetic number, because the mean of its divisors is an integer number (1833618168270).

Almost surely, 2^{20102201022111} is an apocalyptic number.

20102201022111 is a deficient number, since it is larger than the sum of its proper divisors (9235689670209).

20102201022111 is a wasteful number, since it uses less digits than its factorization.

20102201022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449853386.

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

Adding to 20102201022111 its reverse (11122010220102), we get a palindrome (31224211242213).

The spelling of 20102201022111 in words is "twenty trillion, one hundred two billion, two hundred one million, twenty-two thousand, one hundred eleven".