21101430214122 has 32 divisors (see below), whose sum is σ = 43491408371712. Its totient is φ = 6820349713344.

The previous prime is 21101430214103. The next prime is 21101430214153. The reversal of 21101430214122 is 22141203410112.

It is a junction number, because it is equal to n+sod(n) for n = 21101430214092 and 21101430214101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162138858 + ... + 162268949.

It is an arithmetic number, because the mean of its divisors is an integer number (1359106511616).

Almost surely, 2^{21101430214122} is an apocalyptic number.

21101430214122 is an abundant number, since it is smaller than the sum of its proper divisors (22389978157590).

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

21101430214122 is a wasteful number, since it uses less digits than its factorization.

21101430214122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324408142.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 21101430214122 its reverse (22141203410112), we get a palindrome (43242633624234).

The spelling of 21101430214122 in words is "twenty-one trillion, one hundred one billion, four hundred thirty million, two hundred fourteen thousand, one hundred twenty-two".