102212116215 has 16 divisors (see below), whose sum is σ = 178406603136. Its totient is φ = 49557389600.

The previous prime is 102212116207. The next prime is 102212116249. The reversal of 102212116215 is 512611212201.

It is a happy number.

It is not a de Polignac number, because 102212116215 - 2³ = 102212116207 is a prime.

It is a super-2 number, since 2×102212116215² (a number of 23 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, 309733521 + ... + 309733850.

It is an arithmetic number, because the mean of its divisors is an integer number (11150412696).

Almost surely, 2^102212116215 is an apocalyptic number.

102212116215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102212116215 is a deficient number, since it is larger than the sum of its proper divisors (76194486921).

102212116215 is a wasteful number, since it uses less digits than its factorization.

102212116215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619467390.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 102212116215 its reverse (512611212201), we get a palindrome (614823328416).

The spelling of 102212116215 in words is "one hundred two billion, two hundred twelve million, one hundred sixteen thousand, two hundred fifteen".