21002201002200 has 192 divisors, whose sum is σ = 72085710683520. Its totient is φ = 5015450880000.

The previous prime is 21002201002187. The next prime is 21002201002201. The reversal of 21002201002200 is 220010220012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002201002201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23305201 + ... + 24189600.

It is an arithmetic number, because the mean of its divisors is an integer number (375446409810).

Almost surely, 2^{21002201002200} is an apocalyptic number.

21002201002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21002201002200 is an abundant number, since it is smaller than the sum of its proper divisors (51083509681320).

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

21002201002200 is a wasteful number, since it uses less digits than its factorization.

21002201002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47494898 (or 47494889 counting only the distinct ones).

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

Adding to 21002201002200 its reverse (220010220012), we get a palindrome (21222211222212).

The spelling of 21002201002200 in words is "twenty-one trillion, two billion, two hundred one million, two thousand, two hundred".