20102222012 has 12 divisors (see below), whose sum is σ = 35520431856. Its totient is φ = 9953527200.

The previous prime is 20102221991. The next prime is 20102222017. The reversal of 20102222012 is 21022220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102222017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24395489 + ... + 24396312.

It is an arithmetic number, because the mean of its divisors is an integer number (2960035988).

Almost surely, 2^20102222012 is an apocalyptic number.

It is an amenable number.

20102222012 is a deficient number, since it is larger than the sum of its proper divisors (15418209844).

20102222012 is a wasteful number, since it uses less digits than its factorization.

20102222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48791908 (or 48791906 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20102222012 its reverse (21022220102), we get a palindrome (41124442114).

The spelling of 20102222012 in words is "twenty billion, one hundred two million, two hundred twenty-two thousand, twelve".