2221021311201 has 64 divisors (see below), whose sum is σ = 4105739673600. Its totient is φ = 1152815328000.

The previous prime is 2221021311181. The next prime is 2221021311209. The reversal of 2221021311201 is 1021131201222.

It is not a de Polignac number, because 2221021311201 - 2⁶ = 2221021311137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221021311209) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2052120 + ... + 2941638.

It is an arithmetic number, because the mean of its divisors is an integer number (64152182400).

Almost surely, 2^{2221021311201} is an apocalyptic number.

2221021311201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2221021311201 is a deficient number, since it is larger than the sum of its proper divisors (1884718362399).

2221021311201 is a wasteful number, since it uses less digits than its factorization.

2221021311201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890747 (or 890741 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2221021311201 its reverse (1021131201222), we get a palindrome (3242152512423).

The spelling of 2221021311201 in words is "two trillion, two hundred twenty-one billion, twenty-one million, three hundred eleven thousand, two hundred one".