20120522273357 has 4 divisors (see below), whose sum is σ = 21949660661856. Its totient is φ = 18291383884860.

The previous prime is 20120522273347. The next prime is 20120522273381. The reversal of 20120522273357 is 75337222502102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120522273357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120522273347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914569194233 + ... + 914569194254.

It is an arithmetic number, because the mean of its divisors is an integer number (5487415165464).

Almost surely, 2^{20120522273357} is an apocalyptic number.

It is an amenable number.

20120522273357 is a deficient number, since it is larger than the sum of its proper divisors (1829138388499).

20120522273357 is a wasteful number, since it uses less digits than its factorization.

20120522273357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829138388498.

The product of its (nonzero) digits is 352800, while the sum is 41.

Adding to 20120522273357 its reverse (75337222502102), we get a palindrome (95457744775459).

The spelling of 20120522273357 in words is "twenty trillion, one hundred twenty billion, five hundred twenty-two million, two hundred seventy-three thousand, three hundred fifty-seven".