20102222211012 has 72 divisors (see below), whose sum is σ = 52701513522112. Its totient is φ = 6700033130400.

The previous prime is 20102222210999. The next prime is 20102222211059. The reversal of 20102222211012 is 21011222220102.

It is a happy number.

20102222211012 is a `hidden beast` number, since 201 + 0 + 222 + 221 + 10 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8157462 + ... + 10331922.

Almost surely, 2^{20102222211012} is an apocalyptic number.

It is an amenable number.

20102222211012 is an abundant number, since it is smaller than the sum of its proper divisors (32599291311100).

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

20102222211012 is a wasteful number, since it uses less digits than its factorization.

20102222211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183991 (or 2183977 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20102222211012 its reverse (21011222220102), we get a palindrome (41113444431114).

The spelling of 20102222211012 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, two hundred eleven thousand, twelve".