222125535540 has 144 divisors (see below), whose sum is σ = 740079849600. Its totient is φ = 53676082944.

The previous prime is 222125535469. The next prime is 222125535553. The reversal of 222125535540 is 45535521222.

222125535540 is a `hidden beast` number, since 2 + 2 + 2 + 12 + 553 + 55 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 222125535495 and 222125535504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333275 + ... + 1490594.

It is an arithmetic number, because the mean of its divisors is an integer number (5139443400).

Almost surely, 2^222125535540 is an apocalyptic number.

222125535540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222125535540 is an abundant number, since it is smaller than the sum of its proper divisors (517954314060).

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

222125535540 is a wasteful number, since it uses less digits than its factorization.

222125535540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823926 (or 2823921 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 222125535540 in words is "two hundred twenty-two billion, one hundred twenty-five million, five hundred thirty-five thousand, five hundred forty".