102212801 has 2 divisors, whose sum is σ = 102212802. Its totient is φ = 102212800.

The previous prime is 102212777. The next prime is 102212813. The reversal of 102212801 is 108212201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 3806401 = 9920^2 + 1951^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212801 - 2¹⁴ = 102196417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102212801.

It is not a weakly prime, because it can be changed into another prime (102212821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106400 + 51106401.

It is an arithmetic number, because the mean of its divisors is an integer number (51106401).

Almost surely, 2^102212801 is an apocalyptic number.

It is an amenable number.

102212801 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212801 is an equidigital number, since it uses as much as digits as its factorization.

102212801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 102212801 is about 10110.0346685855. The cubic root of 102212801 is about 467.5575740049.

The spelling of 102212801 in words is "one hundred two million, two hundred twelve thousand, eight hundred one".