20120112122001 has 64 divisors (see below), whose sum is σ = 28568575687680. Its totient is φ = 12560161536000.

The previous prime is 20120112121969. The next prime is 20120112122119. The reversal of 20120112122001 is 10022121102102.

It is not a de Polignac number, because 20120112122001 - 2⁵ = 20120112121969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120112122701) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1016516761 + ... + 1016536553.

It is an arithmetic number, because the mean of its divisors is an integer number (446383995120).

Almost surely, 2^{20120112122001} is an apocalyptic number.

It is an amenable number.

20120112122001 is a deficient number, since it is larger than the sum of its proper divisors (8448463565679).

20120112122001 is a wasteful number, since it uses less digits than its factorization.

20120112122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20606.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20120112122001 its reverse (10022121102102), we get a palindrome (30142233224103).

The spelling of 20120112122001 in words is "twenty trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, one".