20212102201101 has 16 divisors (see below), whose sum is σ = 27523179070464. Its totient is φ = 13187886660144.

The previous prime is 20212102201099. The next prime is 20212102201111. The reversal of 20212102201101 is 10110220121202.

It is not a de Polignac number, because 20212102201101 - 2¹ = 20212102201099 is a prime.

It is a super-2 number, since 2×20212102201101² (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 (20212102201111) 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, 12208926 + ... + 13765248.

It is an arithmetic number, because the mean of its divisors is an integer number (1720198691904).

Almost surely, 2^{20212102201101} is an apocalyptic number.

It is an amenable number.

20212102201101 is a deficient number, since it is larger than the sum of its proper divisors (7311076869363).

20212102201101 is a wasteful number, since it uses less digits than its factorization.

20212102201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648480.

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

Adding to 20212102201101 its reverse (10110220121202), we get a palindrome (30322322322303).

The spelling of 20212102201101 in words is "twenty trillion, two hundred twelve billion, one hundred two million, two hundred one thousand, one hundred one".