20520050253122 has 24 divisors (see below), whose sum is σ = 36174521597004. Its totient is φ = 8703644285952.

The previous prime is 20520050253077. The next prime is 20520050253163. The reversal of 20520050253122 is 22135205002502.

It can be written as a sum of positive squares in 2 ways, for example, as 20276459637721 + 243590615401 = 4502939^2 + 493549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1079311463 + ... + 1079330474.

Almost surely, 2^{20520050253122} is an apocalyptic number.

20520050253122 is a deficient number, since it is larger than the sum of its proper divisors (15654471343882).

20520050253122 is a wasteful number, since it uses less digits than its factorization.

20520050253122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158642050 (or 2158642043 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 20520050253122 its reverse (22135205002502), we get a palindrome (42655255255624).

The spelling of 20520050253122 in words is "twenty trillion, five hundred twenty billion, fifty million, two hundred fifty-three thousand, one hundred twenty-two".