20211200022102 has 64 divisors (see below), whose sum is σ = 41635293947904. Its totient is φ = 6535980097920.

The previous prime is 20211200022089. The next prime is 20211200022103. The reversal of 20211200022102 is 20122000211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211200022103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552456903 + ... + 552493485.

It is an arithmetic number, because the mean of its divisors is an integer number (650551467936).

Almost surely, 2^{20211200022102} is an apocalyptic number.

20211200022102 is an abundant number, since it is smaller than the sum of its proper divisors (21424093925802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211200022102 is a wasteful number, since it uses less digits than its factorization.

20211200022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43773.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20211200022102 its reverse (20122000211202), we get a palindrome (40333200233304).

The spelling of 20211200022102 in words is "twenty trillion, two hundred eleven billion, two hundred million, twenty-two thousand, one hundred two".