20000001222012 has 96 divisors (see below), whose sum is σ = 54209899344384. Its totient is φ = 5620376390400.

The previous prime is 20000001221957. The next prime is 20000001222017. The reversal of 20000001222012 is 21022210000002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000001222017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151250758 + ... + 151382930.

It is an arithmetic number, because the mean of its divisors is an integer number (564686451504).

Almost surely, 2^{20000001222012} is an apocalyptic number.

It is an amenable number.

20000001222012 is an abundant number, since it is smaller than the sum of its proper divisors (34209898122372).

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

20000001222012 is a wasteful number, since it uses less digits than its factorization.

20000001222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161779 (or 161777 counting only the distinct ones).

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

Adding to 20000001222012 its reverse (21022210000002), we get a palindrome (41022211222014).

The spelling of 20000001222012 in words is "twenty trillion, one million, two hundred twenty-two thousand, twelve".