102210020102 has 4 divisors (see below), whose sum is σ = 153315030156. Its totient is φ = 51105010050.

The previous prime is 102210020093. The next prime is 102210020111. The reversal of 102210020102 is 201020012201.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (102210020093) and next prime (102210020111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552505024 + ... + 25552505027.

It is an arithmetic number, because the mean of its divisors is an integer number (38328757539).

Almost surely, 2^102210020102 is an apocalyptic number.

102210020102 is a deficient number, since it is larger than the sum of its proper divisors (51105010054).

102210020102 is an equidigital number, since it uses as much as digits as its factorization.

102210020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51105010053.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102210020102 its reverse (201020012201), we get a palindrome (303230032303).

The spelling of 102210020102 in words is "one hundred two billion, two hundred ten million, twenty thousand, one hundred two".