20012222202012 has 18 divisors (see below), whose sum is σ = 50586450566288. Its totient is φ = 6670740733992.

The previous prime is 20012222201977. The next prime is 20012222202157. The reversal of 20012222202012 is 21020222221002.

20012222202012 is a `hidden beast` number, since 20 + 0 + 1 + 222 + 220 + 201 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277947530548 + ... + 277947530619.

Almost surely, 2^{20012222202012} is an apocalyptic number.

It is an amenable number.

20012222202012 is an abundant number, since it is smaller than the sum of its proper divisors (30574228364276).

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

20012222202012 is a wasteful number, since it uses less digits than its factorization.

20012222202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555895061177 (or 555895061172 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20012222202012 its reverse (21020222221002), we get a palindrome (41032444423014).

The spelling of 20012222202012 in words is "twenty trillion, twelve billion, two hundred twenty-two million, two hundred two thousand, twelve".