20400210244012 has 6 divisors (see below), whose sum is σ = 35700367927028. Its totient is φ = 10200105122004.

The previous prime is 20400210243989. The next prime is 20400210244061. The reversal of 20400210244012 is 21044201200402.

It is a super-2 number, since 2×20400210244012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550026280498 + ... + 2550026280505.

Almost surely, 2^{20400210244012} is an apocalyptic number.

It is an amenable number.

20400210244012 is a deficient number, since it is larger than the sum of its proper divisors (15300157683016).

20400210244012 is a wasteful number, since it uses less digits than its factorization.

20400210244012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100052561007 (or 5100052561005 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20400210244012 its reverse (21044201200402), we get a palindrome (41444411444414).

The spelling of 20400210244012 in words is "twenty trillion, four hundred billion, two hundred ten million, two hundred forty-four thousand, twelve".