20120201020122 has 64 divisors (see below), whose sum is σ = 46355861274624. Its totient is φ = 5702784272640.

The previous prime is 20120201020111. The next prime is 20120201020147. The reversal of 20120201020122 is 22102010202102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53702722 + ... + 54076082.

It is an arithmetic number, because the mean of its divisors is an integer number (724310332416).

Almost surely, 2^{20120201020122} is an apocalyptic number.

20120201020122 is an abundant number, since it is smaller than the sum of its proper divisors (26235660254502).

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

20120201020122 is a wasteful number, since it uses less digits than its factorization.

20120201020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383603.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20120201020122 its reverse (22102010202102), we get a palindrome (42222211222224).

The spelling of 20120201020122 in words is "twenty trillion, one hundred twenty billion, two hundred one million, twenty thousand, one hundred twenty-two".