21301213011102 has 32 divisors (see below), whose sum is σ = 47341026992160. Its totient is φ = 7099654625280.

The previous prime is 21301213011097. The next prime is 21301213011107. The reversal of 21301213011102 is 20111031210312.

21301213011102 is a `hidden beast` number, since 2 + 130 + 121 + 301 + 110 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (21301213011097) and next prime (21301213011107).

It is a super-2 number, since 2×21301213011102² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301213011107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20309049 + ... + 21332132.

It is an arithmetic number, because the mean of its divisors is an integer number (1479407093505).

Almost surely, 2^{21301213011102} is an apocalyptic number.

21301213011102 is an abundant number, since it is smaller than the sum of its proper divisors (26039813981058).

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

21301213011102 is a wasteful number, since it uses less digits than its factorization.

21301213011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41650665 (or 41650659 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21301213011102 its reverse (20111031210312), we get a palindrome (41412244221414).

The spelling of 21301213011102 in words is "twenty-one trillion, three hundred one billion, two hundred thirteen million, eleven thousand, one hundred two".