2221021101201 has 24 divisors (see below), whose sum is σ = 3444962251680. Its totient is φ = 1269113211072.

The previous prime is 2221021101179. The next prime is 2221021101263. The reversal of 2221021101201 is 1021011201222.

It is not a de Polignac number, because 2221021101201 - 2²⁵ = 2220987546769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221021101601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4555690 + ... + 5019596.

It is an arithmetic number, because the mean of its divisors is an integer number (143540093820).

Almost surely, 2^{2221021101201} is an apocalyptic number.

2221021101201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2221021101201 is a deficient number, since it is larger than the sum of its proper divisors (1223941150479).

2221021101201 is a wasteful number, since it uses less digits than its factorization.

2221021101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496493 (or 496486 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221021101201 its reverse (1021011201222), we get a palindrome (3242032302423).

The spelling of 2221021101201 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred one thousand, two hundred one".