22021210002000 has 320 divisors, whose sum is σ = 77589776579328. Its totient is φ = 5328881920000.

The previous prime is 22021210001887. The next prime is 22021210002019. The reversal of 22021210002000 is 20001212022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36462490 + ... + 37061510.

Almost surely, 2^{22021210002000} is an apocalyptic number.

22021210002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021210002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38794888289664).

22021210002000 is an abundant number, since it is smaller than the sum of its proper divisors (55568566577328).

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

22021210002000 is a wasteful number, since it uses less digits than its factorization.

22021210002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599615 (or 599599 counting only the distinct ones).

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

Adding to 22021210002000 its reverse (20001212022), we get a palindrome (22041211214022).

The spelling of 22021210002000 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, two thousand".