2015012222522 has 8 divisors (see below), whose sum is σ = 3255019744116. Its totient is φ = 930005641152.

The previous prime is 2015012222459. The next prime is 2015012222539. The reversal of 2015012222522 is 2252222105102.

It can be written as a sum of positive squares in 2 ways, for example, as 1558699813441 + 456312409081 = 1248479^2 + 675509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 77500470097 = 2015012222522 / (2 + 0 + 1 + 5 + 0 + 1 + 2 + 2 + 2 + 2 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2015012222491 and 2015012222500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38750235023 + ... + 38750235074.

Almost surely, 2^{2015012222522} is an apocalyptic number.

2015012222522 is a deficient number, since it is larger than the sum of its proper divisors (1240007521594).

2015012222522 is a wasteful number, since it uses less digits than its factorization.

2015012222522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77500470112.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 2015012222522 its reverse (2252222105102), we get a palindrome (4267234327624).

The spelling of 2015012222522 in words is "two trillion, fifteen billion, twelve million, two hundred twenty-two thousand, five hundred twenty-two".