21114201000 has 64 divisors (see below), whose sum is σ = 65876316480. Its totient is φ = 5630452800.

The previous prime is 21114200999. The next prime is 21114201011. The reversal of 21114201000 is 10241112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 3516034 + ... + 3522033.

It is an arithmetic number, because the mean of its divisors is an integer number (1029317445).

Almost surely, 2^21114201000 is an apocalyptic number.

21114201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21114201000 is an abundant number, since it is smaller than the sum of its proper divisors (44762115480).

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

21114201000 is a wasteful number, since it uses less digits than its factorization.

21114201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038091 (or 7038077 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21114201000 its reverse (10241112), we get a palindrome (21124442112).

The spelling of 21114201000 in words is "twenty-one billion, one hundred fourteen million, two hundred one thousand".