222015525142144 has 16 divisors (see below), whose sum is σ = 442296553994370. Its totient is φ = 111007762571008.

The previous prime is 222015525142043. The next prime is 222015525142157. The reversal of 222015525142144 is 441241525510222.

It can be written as a sum of positive squares in only one way, i.e., 177233838926400 + 44781686215744 = 13312920^2 + 6691912^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 222015525142097 and 222015525142106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867248144959 + ... + 867248145214.

Almost surely, 2^{222015525142144} is an apocalyptic number.

It is an amenable number.

222015525142144 is a deficient number, since it is larger than the sum of its proper divisors (220281028852226).

222015525142144 is an equidigital number, since it uses as much as digits as its factorization.

222015525142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734496290187 (or 1734496290175 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 40.

The spelling of 222015525142144 in words is "two hundred twenty-two trillion, fifteen billion, five hundred twenty-five million, one hundred forty-two thousand, one hundred forty-four".