21200002212000 has 192 divisors, whose sum is σ = 70138846971648. Its totient is φ = 5597360000000.

The previous prime is 21200002211987. The next prime is 21200002212013. The reversal of 21200002212000 is 21220000212.

It is an interprime number because it is at equal distance from previous prime (21200002211987) and next prime (21200002212013).

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 31 ways as a sum of consecutive naturals, for example, 7533876 + ... + 9957875.

It is an arithmetic number, because the mean of its divisors is an integer number (365306494644).

Almost surely, 2^{21200002212000} is an apocalyptic number.

21200002212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21200002212000 is an abundant number, since it is smaller than the sum of its proper divisors (48938844759648).

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

21200002212000 is a wasteful number, since it uses less digits than its factorization.

21200002212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17491880 (or 17491862 counting only the distinct ones).

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

Adding to 21200002212000 its reverse (21220000212), we get a palindrome (21221222212212).

The spelling of 21200002212000 in words is "twenty-one trillion, two hundred billion, two million, two hundred twelve thousand".