2015222540122 has 16 divisors (see below), whose sum is σ = 3411348501600. Its totient is φ = 884423685040.

The previous prime is 2015222540057. The next prime is 2015222540129. The reversal of 2015222540122 is 2210452225102.

It is a super-2 number, since 2×2015222540122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2015222540129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579327372 + ... + 1579328647.

It is an arithmetic number, because the mean of its divisors is an integer number (213209281350).

Almost surely, 2^{2015222540122} is an apocalyptic number.

2015222540122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2015222540122 is a deficient number, since it is larger than the sum of its proper divisors (1396125961478).

2015222540122 is a wasteful number, since it uses less digits than its factorization.

2015222540122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158656061.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 2015222540122 its reverse (2210452225102), we get a palindrome (4225674765224).

The spelling of 2015222540122 in words is "two trillion, fifteen billion, two hundred twenty-two million, five hundred forty thousand, one hundred twenty-two".