21000130122102 has 16 divisors (see below), whose sum is σ = 42000352943040. Its totient is φ = 7000027924232.

The previous prime is 21000130122053. The next prime is 21000130122121. The reversal of 21000130122102 is 20122103100012.

It is a super-2 number, since 2×21000130122102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720852 + ... + 6520727.

It is an arithmetic number, because the mean of its divisors is an integer number (2625022058940).

Almost surely, 2^{21000130122102} is an apocalyptic number.

21000130122102 is an abundant number, since it is smaller than the sum of its proper divisors (21000222820938).

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

21000130122102 is a wasteful number, since it uses less digits than its factorization.

21000130122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7724907.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21000130122102 its reverse (20122103100012), we get a palindrome (41122233222114).

The spelling of 21000130122102 in words is "twenty-one trillion, one hundred thirty million, one hundred twenty-two thousand, one hundred two".