2221321211000 has 64 divisors (see below), whose sum is σ = 5227937657280. Its totient is φ = 883392412800.

The previous prime is 2221321210991. The next prime is 2221321211063. The reversal of 2221321211000 is 1121231222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221321211000.

It is a congruent number.

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, 6247004 + ... + 6593003.

It is an arithmetic number, because the mean of its divisors is an integer number (81686525895).

Almost surely, 2^{2221321211000} is an apocalyptic number.

2221321211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221321211000 is an abundant number, since it is smaller than the sum of its proper divisors (3006616446280).

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

2221321211000 is a wasteful number, since it uses less digits than its factorization.

2221321211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840201 (or 12840187 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221321211000 its reverse (1121231222), we get a palindrome (2222442442222).

The spelling of 2221321211000 in words is "two trillion, two hundred twenty-one billion, three hundred twenty-one million, two hundred eleven thousand".