102212629 has 4 divisors (see below), whose sum is σ = 103612876. Its totient is φ = 100812384.

The previous prime is 102212623. The next prime is 102212633. The reversal of 102212629 is 926212201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57790404 + 44422225 = 7602^2 + 6665^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212629 - 2⁵ = 102212597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212623) 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, 700014 + ... + 700159.

It is an arithmetic number, because the mean of its divisors is an integer number (25903219).

Almost surely, 2^102212629 is an apocalyptic number.

It is an amenable number.

102212629 is a deficient number, since it is larger than the sum of its proper divisors (1400247).

102212629 is an equidigital number, since it uses as much as digits as its factorization.

102212629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400246.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 102212629 is about 10110.0261621818. The cubic root of 102212629 is about 467.5573117418.

The spelling of 102212629 in words is "one hundred two million, two hundred twelve thousand, six hundred twenty-nine".