102022520 has 16 divisors (see below), whose sum is σ = 229550760. Its totient is φ = 40808992.

The previous prime is 102022507. The next prime is 102022523. The reversal of 102022520 is 25220201.

It is a junction number, because it is equal to n+sod(n) for n = 102022495 and 102022504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022523) 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, 1275242 + ... + 1275321.

Almost surely, 2^102022520 is an apocalyptic number.

102022520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102022520 is an abundant number, since it is smaller than the sum of its proper divisors (127528240).

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

102022520 is a wasteful number, since it uses less digits than its factorization.

102022520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550574 (or 2550570 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 102022520 is about 10100.6197829638. The cubic root of 102022520 is about 467.2672562016.

Adding to 102022520 its reverse (25220201), we get a palindrome (127242721).

The spelling of 102022520 in words is "one hundred two million, twenty-two thousand, five hundred twenty".