21002100021114 has 16 divisors (see below), whose sum is σ = 42224117322240. Its totient is φ = 6964047127040.

The previous prime is 21002100021103. The next prime is 21002100021143. The reversal of 21002100021114 is 41112000120012.

It is a junction number, because it is equal to n+sod(n) for n = 21002100021093 and 21002100021102.

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, 9163218759 + ... + 9163221050.

It is an arithmetic number, because the mean of its divisors is an integer number (2639007332640).

Almost surely, 2^{21002100021114} is an apocalyptic number.

21002100021114 is an abundant number, since it is smaller than the sum of its proper divisors (21222017301126).

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

21002100021114 is a wasteful number, since it uses less digits than its factorization.

21002100021114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18326440005.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21002100021114 its reverse (41112000120012), we get a palindrome (62114100141126).

The spelling of 21002100021114 in words is "twenty-one trillion, two billion, one hundred million, twenty-one thousand, one hundred fourteen".