20121025054 has 16 divisors (see below), whose sum is σ = 32506664400. Its totient is φ = 9285635520.

The previous prime is 20121025031. The next prime is 20121025081. The reversal of 20121025054 is 45052012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244122 + ... + 315970.

It is an arithmetic number, because the mean of its divisors is an integer number (2031666525).

Almost surely, 2^20121025054 is an apocalyptic number.

20121025054 is a deficient number, since it is larger than the sum of its proper divisors (12385639346).

20121025054 is a wasteful number, since it uses less digits than its factorization.

20121025054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82635.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 20121025054 its reverse (45052012102), we get a palindrome (65173037156).

The spelling of 20121025054 in words is "twenty billion, one hundred twenty-one million, twenty-five thousand, fifty-four".