21214111340000 has 60 divisors (see below), whose sum is σ = 52189896062304. Its totient is φ = 8485644528000.

The previous prime is 21214111339999. The next prime is 21214111340141. The reversal of 21214111340000 is 4311141212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 530332784 + ... + 530372783.

Almost surely, 2^{21214111340000} is an apocalyptic number.

21214111340000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21214111340000 is an abundant number, since it is smaller than the sum of its proper divisors (30975784722304).

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

21214111340000 is an equidigital number, since it uses as much as digits as its factorization.

21214111340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060705597 (or 1060705574 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21214111340000 its reverse (4311141212), we get a palindrome (21218422481212).

The spelling of 21214111340000 in words is "twenty-one trillion, two hundred fourteen billion, one hundred eleven million, three hundred forty thousand".