21202410000 has 100 divisors (see below), whose sum is σ = 68444303312. Its totient is φ = 5653968000.

The previous prime is 21202409989. The next prime is 21202410001. The reversal of 21202410000 is 1420212.

It is a tau number, because it is divible by the number of its divisors (100).

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

It is not an unprimeable number, because it can be changed into a prime (21202410001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 323374 + ... + 383373.

Almost surely, 2^21202410000 is an apocalyptic number.

21202410000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202410000 is an abundant number, since it is smaller than the sum of its proper divisors (47241893312).

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

21202410000 is an equidigital number, since it uses as much as digits as its factorization.

21202410000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706778 (or 706757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21202410000 its reverse (1420212), we get a palindrome (21203830212).

The spelling of 21202410000 in words is "twenty-one billion, two hundred two million, four hundred ten thousand".