102101220402 has 16 divisors (see below), whose sum is σ = 211243904640. Its totient is φ = 32860162832.

The previous prime is 102101220311. The next prime is 102101220407. The reversal of 102101220402 is 204022101201.

It is not an unprimeable number, because it can be changed into a prime (102101220407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293394138 + ... + 293394485.

It is an arithmetic number, because the mean of its divisors is an integer number (13202744040).

Almost surely, 2^102101220402 is an apocalyptic number.

102101220402 is an abundant number, since it is smaller than the sum of its proper divisors (109142684238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102101220402 is a wasteful number, since it uses less digits than its factorization.

102101220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586788657.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102101220402 its reverse (204022101201), we get a palindrome (306123321603).

The spelling of 102101220402 in words is "one hundred two billion, one hundred one million, two hundred twenty thousand, four hundred two".