20012100222 has 32 divisors (see below), whose sum is σ = 44221116672. Its totient is φ = 6005335424.

The previous prime is 20012100217. The next prime is 20012100259. The reversal of 20012100222 is 22200121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012100198 and 20012100207.

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 15 ways as a sum of consecutive naturals, for example, 4262808 + ... + 4267499.

It is an arithmetic number, because the mean of its divisors is an integer number (1381909896).

Almost surely, 2^20012100222 is an apocalyptic number.

20012100222 is an abundant number, since it is smaller than the sum of its proper divisors (24209016450).

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

20012100222 is a wasteful number, since it uses less digits than its factorization.

20012100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8530352.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20012100222 its reverse (22200121002), we get a palindrome (42212221224).

It can be divided in two parts, 200121002 and 22, that multiplied together give a palindrome (4402662044).

The spelling of 20012100222 in words is "twenty billion, twelve million, one hundred thousand, two hundred twenty-two".