102215020 has 12 divisors (see below), whose sum is σ = 214651584. Its totient is φ = 40886000.

The previous prime is 102214997. The next prime is 102215021. The reversal of 102215020 is 20512201.

It is not an unprimeable number, because it can be changed into a prime (102215021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555356 + ... + 2555395.

It is an arithmetic number, because the mean of its divisors is an integer number (17887632).

Almost surely, 2^102215020 is an apocalyptic number.

102215020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102215020 is an abundant number, since it is smaller than the sum of its proper divisors (112436564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102215020 is a wasteful number, since it uses less digits than its factorization.

102215020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110760 (or 5110758 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 102215020 is about 10110.1444104424. The cubic root of 102215020 is about 467.5609574779.

Adding to 102215020 its reverse (20512201), we get a palindrome (122727221).

The spelling of 102215020 in words is "one hundred two million, two hundred fifteen thousand, twenty".