20102121022101 has 16 divisors (see below), whose sum is σ = 27727914835200. Its totient is φ = 12938898990528.

The previous prime is 20102121022099. The next prime is 20102121022103. The reversal of 20102121022101 is 10122012120102.

It is an interprime number because it is at equal distance from previous prime (20102121022099) and next prime (20102121022103).

It is not a de Polignac number, because 20102121022101 - 2¹ = 20102121022099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102121022103) 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, 684406 + ... + 6377511.

It is an arithmetic number, because the mean of its divisors is an integer number (1732994677200).

Almost surely, 2^{20102121022101} is an apocalyptic number.

It is an amenable number.

20102121022101 is a deficient number, since it is larger than the sum of its proper divisors (7625793813099).

20102121022101 is a wasteful number, since it uses less digits than its factorization.

20102121022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094668.

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

Adding to 20102121022101 its reverse (10122012120102), we get a palindrome (30224133142203).

The spelling of 20102121022101 in words is "twenty trillion, one hundred two billion, one hundred twenty-one million, twenty-two thousand, one hundred one".