20112012122010 has 128 divisors (see below), whose sum is σ = 52378289280000. Its totient is φ = 4926389248512.

The previous prime is 20112012122009. The next prime is 20112012122071. The reversal of 20112012122010 is 1022121021102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1641160 + ... + 6551139.

It is an arithmetic number, because the mean of its divisors is an integer number (409205385000).

Almost surely, 2^{20112012122010} is an apocalyptic number.

20112012122010 is an abundant number, since it is smaller than the sum of its proper divisors (32266277157990).

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

20112012122010 is a wasteful number, since it uses less digits than its factorization.

20112012122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192460.

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

Adding to 20112012122010 its reverse (1022121021102), we get a palindrome (21134133143112).

It can be divided in two parts, 201120 and 12122010, that added together give a triangular number (12323130 = T₄₉₆₄).

The spelling of 20112012122010 in words is "twenty trillion, one hundred twelve billion, twelve million, one hundred twenty-two thousand, ten".