102220232 has 8 divisors (see below), whose sum is σ = 191662950. Its totient is φ = 51110112.

The previous prime is 102220231. The next prime is 102220267. The reversal of 102220232 is 232022201.

It can be written as a sum of positive squares in only one way, i.e., 63457156 + 38763076 = 7966^2 + 6226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (102220231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388757 + ... + 6388772.

Almost surely, 2^102220232 is an apocalyptic number.

It is an amenable number.

102220232 is a deficient number, since it is larger than the sum of its proper divisors (89442718).

102220232 is a wasteful number, since it uses less digits than its factorization.

102220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777535 (or 12777531 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 102220232 is about 10110.4021680643. The cubic root of 102220232 is about 467.5689044062.

Adding to 102220232 its reverse (232022201), we get a palindrome (334242433).

The spelling of 102220232 in words is "one hundred two million, two hundred twenty thousand, two hundred thirty-two".