11542213312215 has 16 divisors (see below), whose sum is σ = 18467863526400. Its totient is φ = 6155739690912.

The previous prime is 11542213312181. The next prime is 11542213312247. The reversal of 11542213312215 is 51221331224511.

It is not a de Polignac number, because 11542213312215 - 2²¹ = 11542211215063 is a prime.

It is a super-2 number, since 2×11542213312215² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5820895 + ... + 7547664.

It is an arithmetic number, because the mean of its divisors is an integer number (1154241470400).

Almost surely, 2^{11542213312215} is an apocalyptic number.

11542213312215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11542213312215 is a deficient number, since it is larger than the sum of its proper divisors (6925650214185).

11542213312215 is a wasteful number, since it uses less digits than its factorization.

11542213312215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426126.

The product of its digits is 14400, while the sum is 33.

Adding to 11542213312215 its reverse (51221331224511), we get a palindrome (62763544536726).

The spelling of 11542213312215 in words is "eleven trillion, five hundred forty-two billion, two hundred thirteen million, three hundred twelve thousand, two hundred fifteen".