20012211102 has 16 divisors (see below), whose sum is σ = 43103224080. Its totient is φ = 6157603392.

The previous prime is 20012211097. The next prime is 20012211143. The reversal of 20012211102 is 20111221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128283327 + ... + 128283482.

It is an arithmetic number, because the mean of its divisors is an integer number (2693951505).

Almost surely, 2^20012211102 is an apocalyptic number.

20012211102 is an abundant number, since it is smaller than the sum of its proper divisors (23091012978).

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

20012211102 is a wasteful number, since it uses less digits than its factorization.

20012211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256566827.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20012211102 its reverse (20111221002), we get a palindrome (40123432104).

The spelling of 20012211102 in words is "twenty billion, twelve million, two hundred eleven thousand, one hundred two".