221425601514210 has 40 divisors (see below), whose sum is σ = 595388839629276. Its totient is φ = 59046827070240.

The previous prime is 221425601514167. The next prime is 221425601514211. The reversal of 221425601514210 is 12415106524122.

221425601514210 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 5 + 601 + 5 + 1 + 42 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 220945838877009 + 479762637201 = 14864247^2 + 692649^2 .

It is not an unprimeable number, because it can be changed into a prime (221425601514211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136682469261 + ... + 136682470880.

Almost surely, 2^{221425601514210} is an apocalyptic number.

221425601514210 is an abundant number, since it is smaller than the sum of its proper divisors (373963238115066).

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

221425601514210 is a wasteful number, since it uses less digits than its factorization.

221425601514210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273364940160 (or 273364940151 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 221425601514210 in words is "two hundred twenty-one trillion, four hundred twenty-five billion, six hundred one million, five hundred fourteen thousand, two hundred ten".