2221001022000 has 80 divisors (see below), whose sum is σ = 7160507314272. Its totient is φ = 592266937600.

The previous prime is 2221001021969. The next prime is 2221001022047. The reversal of 2221001022000 is 2201001222.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 185077419 + ... + 185089418.

Almost surely, 2^{2221001022000} is an apocalyptic number.

2221001022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221001022000 is an abundant number, since it is smaller than the sum of its proper divisors (4939506292272).

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

2221001022000 is a wasteful number, since it uses less digits than its factorization.

2221001022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370166863 (or 370166847 counting only the distinct ones).

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

Adding to 2221001022000 its reverse (2201001222), we get a palindrome (2223202023222).

The spelling of 2221001022000 in words is "two trillion, two hundred twenty-one billion, one million, twenty-two thousand".