522100001225 has 24 divisors (see below), whose sum is σ = 715198926720. Its totient is φ = 374902632000.

The previous prime is 522100001221. The next prime is 522100001239.

It is a happy number.

522100001225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522100001225 - 2² = 522100001221 is a prime.

It is a super-2 number, since 2×522100001225² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 522100001197 and 522100001206.

It is not an unprimeable number, because it can be changed into a prime (522100001221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11994386 + ... + 12037835.

It is an arithmetic number, because the mean of its divisors is an integer number (29799955280).

Almost surely, 2^522100001225 is an apocalyptic number.

522100001225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

522100001225 is a deficient number, since it is larger than the sum of its proper divisors (193098925495).

522100001225 is a wasteful number, since it uses less digits than its factorization.

522100001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24032321 (or 24032316 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

It can be divided in two parts, 52210000 and 1225, that added together give a palindrome (52211225).

The spelling of 522100001225 in words is "five hundred twenty-two billion, one hundred million, one thousand, two hundred twenty-five".