20122051425 has 96 divisors (see below), whose sum is σ = 38826086400. Its totient is φ = 9005740800.

The previous prime is 20122051409. The next prime is 20122051489. The reversal of 20122051425 is 52415022102.

It is not a de Polignac number, because 20122051425 - 2⁴ = 20122051409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122051395 and 20122051404.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5552164 + ... + 5555786.

It is an arithmetic number, because the mean of its divisors is an integer number (404438400).

Almost surely, 2^20122051425 is an apocalyptic number.

20122051425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20122051425 is a deficient number, since it is larger than the sum of its proper divisors (18704034975).

20122051425 is a wasteful number, since it uses less digits than its factorization.

20122051425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20122051425 its reverse (52415022102), we get a palindrome (72537073527).

The spelling of 20122051425 in words is "twenty billion, one hundred twenty-two million, fifty-one thousand, four hundred twenty-five".