102021022210 has 16 divisors (see below), whose sum is σ = 184061953656. Its totient is φ = 40714161408.

The previous prime is 102021022171. The next prime is 102021022249. The reversal of 102021022210 is 12220120201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102021022171) and next prime (102021022249).

It can be written as a sum of positive squares in 4 ways, for example, as 93387081649 + 8633940561 = 305593^2 + 92919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11776389 + ... + 11785048.

Almost surely, 2^102021022210 is an apocalyptic number.

102021022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021022210 is a deficient number, since it is larger than the sum of its proper divisors (82040931446).

102021022210 is a wasteful number, since it uses less digits than its factorization.

102021022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23561877.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102021022210 its reverse (12220120201), we get a palindrome (114241142411).

The spelling of 102021022210 in words is "one hundred two billion, twenty-one million, twenty-two thousand, two hundred ten".