20220000000012 has 36 divisors (see below), whose sum is σ = 51484744538136. Its totient is φ = 6690802918080.

The previous prime is 20219999999993. The next prime is 20220000000017. The reversal of 20220000000012 is 21000000002202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20219999999931 and 20220000000003.

It is not an unprimeable number, because it can be changed into a prime (20220000000017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2049873414 + ... + 2049883277.

It is an arithmetic number, because the mean of its divisors is an integer number (1430131792726).

Almost surely, 2^{20220000000012} is an apocalyptic number.

It is an amenable number.

20220000000012 is an abundant number, since it is smaller than the sum of its proper divisors (31264744538124).

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

20220000000012 is a wasteful number, since it uses less digits than its factorization.

20220000000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099756838 (or 4099756833 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20220000000012 its reverse (21000000002202), we get a palindrome (41220000002214).

The spelling of 20220000000012 in words is "twenty trillion, two hundred twenty billion, twelve", and thus it is an aban number.