21130101102 has 32 divisors (see below), whose sum is σ = 46107356544. Its totient is φ = 6402322400.

The previous prime is 21130101089. The next prime is 21130101107. The reversal of 21130101102 is 20110103112.

It is a super-2 number, since 2×21130101102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130101107) 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, 906352 + ... + 929372.

It is an arithmetic number, because the mean of its divisors is an integer number (1440854892).

Almost surely, 2^21130101102 is an apocalyptic number.

21130101102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21130101102 is an abundant number, since it is smaller than the sum of its proper divisors (24977255442).

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

21130101102 is a wasteful number, since it uses less digits than its factorization.

21130101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36944.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21130101102 its reverse (20110103112), we get a palindrome (41240204214).

It can be divided in two parts, 2113010 and 1102, that added together give a palindrome (2114112).

The spelling of 21130101102 in words is "twenty-one billion, one hundred thirty million, one hundred one thousand, one hundred two".