2212202221021 has 32 divisors (see below), whose sum is σ = 2539752727680. Its totient is φ = 1908793257984.

The previous prime is 2212202220983. The next prime is 2212202221027. The reversal of 2212202221021 is 1201222022122.

It is not a de Polignac number, because 2212202221021 - 2²³ = 2212193832413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212202221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212202221027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53617626 + ... + 53658868.

It is an arithmetic number, because the mean of its divisors is an integer number (79367272740).

Almost surely, 2^{2212202221021} is an apocalyptic number.

It is an amenable number.

2212202221021 is a deficient number, since it is larger than the sum of its proper divisors (327550506659).

2212202221021 is a wasteful number, since it uses less digits than its factorization.

2212202221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42925.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2212202221021 its reverse (1201222022122), we get a palindrome (3413424243143).

The spelling of 2212202221021 in words is "two trillion, two hundred twelve billion, two hundred two million, two hundred twenty-one thousand, twenty-one".