102220650 has 192 divisors, whose sum is σ = 333907200. Its totient is φ = 22498560.

The previous prime is 102220633. The next prime is 102220663. The reversal of 102220650 is 56022201.

102220650 is a `hidden beast` number, since 10 + 2 + 2 + 2 + 0 + 650 = 666.

It is a super-2 number, since 2×102220650² = 20898122572845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 273864 + ... + 274236.

It is an arithmetic number, because the mean of its divisors is an integer number (1739100).

Almost surely, 2^102220650 is an apocalyptic number.

102220650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102220650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166953600).

102220650 is an abundant number, since it is smaller than the sum of its proper divisors (231686550).

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

102220650 is a wasteful number, since it uses less digits than its factorization.

102220650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102220650 is about 10110.4228398223. The cubic root of 102220650 is about 467.5695417344.

Adding to 102220650 its reverse (56022201), we get a palindrome (158242851).

The spelling of 102220650 in words is "one hundred two million, two hundred twenty thousand, six hundred fifty".