21202110010000 has 100 divisors (see below), whose sum is σ = 53564273845632. Its totient is φ = 8112111568000.

The previous prime is 21202110009991. The next prime is 21202110010009. The reversal of 21202110010000 is 1001120212.

It is an interprime number because it is at equal distance from previous prime (21202110009991) and next prime (21202110010009).

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

It is a super-2 number, since 2×21202110010000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (21202110010009) 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, 45861544 + ... + 46321543.

Almost surely, 2^{21202110010000} is an apocalyptic number.

21202110010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202110010000 is an abundant number, since it is smaller than the sum of its proper divisors (32362163835632).

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

21202110010000 is an equidigital number, since it uses as much as digits as its factorization.

21202110010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92183138 (or 92183117 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21202110010000 its reverse (1001120212), we get a palindrome (21203111130212).

The spelling of 21202110010000 in words is "twenty-one trillion, two hundred two billion, one hundred ten million, ten thousand".