252220025171020 has 24 divisors (see below), whose sum is σ = 529665397932384. Its totient is φ = 100887372911616.

The previous prime is 252220025170969. The next prime is 252220025171039. The reversal of 252220025171020 is 20171520022252.

It is a super-2 number, since 2×252220025171020² (a number of 30 digits) contains 22 as substring.

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, 36569832 + ... + 42916111.

It is an arithmetic number, because the mean of its divisors is an integer number (22069391580516).

Almost surely, 2^{252220025171020} is an apocalyptic number.

252220025171020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252220025171020 is an abundant number, since it is smaller than the sum of its proper divisors (277445372761364).

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

252220025171020 is a wasteful number, since it uses less digits than its factorization.

252220025171020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79644609 (or 79644607 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 252220025171020 its reverse (20171520022252), we get a palindrome (272391545193272).

The spelling of 252220025171020 in words is "two hundred fifty-two trillion, two hundred twenty billion, twenty-five million, one hundred seventy-one thousand, twenty".