20201102022101 has 48 divisors (see below), whose sum is σ = 27610376408832. Its totient is φ = 14380465904640.

The previous prime is 20201102022029. The next prime is 20201102022103. The reversal of 20201102022101 is 10122020110202.

It is not a de Polignac number, because 20201102022101 - 2³⁰ = 20200028280277 is a prime.

It is a super-2 number, since 2×20201102022101² (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 (20201102022103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8388785 + ... + 10524918.

It is an arithmetic number, because the mean of its divisors is an integer number (575216175184).

Almost surely, 2^{20201102022101} is an apocalyptic number.

It is an amenable number.

20201102022101 is a deficient number, since it is larger than the sum of its proper divisors (7409274386731).

20201102022101 is a wasteful number, since it uses less digits than its factorization.

20201102022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18913842 (or 18913831 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20201102022101 its reverse (10122020110202), we get a palindrome (30323122132303).

The spelling of 20201102022101 in words is "twenty trillion, two hundred one billion, one hundred two million, twenty-two thousand, one hundred one".