21102213300102 has 48 divisors (see below), whose sum is σ = 51037911258048. Its totient is φ = 6245898225840.

The previous prime is 21102213300089. The next prime is 21102213300127. The reversal of 21102213300102 is 20100331220112.

21102213300102 is a `hidden beast` number, since 2 + 1 + 10 + 221 + 330 + 0 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1239257008 + ... + 1239274035.

It is an arithmetic number, because the mean of its divisors is an integer number (1063289817876).

Almost surely, 2^{21102213300102} is an apocalyptic number.

21102213300102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21102213300102 is an abundant number, since it is smaller than the sum of its proper divisors (29935697957946).

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

21102213300102 is a wasteful number, since it uses less digits than its factorization.

21102213300102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478531105 (or 2478531102 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21102213300102 its reverse (20100331220112), we get a palindrome (41202544520214).

The spelling of 21102213300102 in words is "twenty-one trillion, one hundred two billion, two hundred thirteen million, three hundred thousand, one hundred two".