2212020100221 has 32 divisors (see below), whose sum is σ = 3060312912768. Its totient is φ = 1420062658560.

The previous prime is 2212020100177. The next prime is 2212020100231. The reversal of 2212020100221 is 1220010202122.

It is a de Polignac number, because none of the positive numbers 2^k-2212020100221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212020100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212020100231) 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, 8539605 + ... + 8794821.

It is an arithmetic number, because the mean of its divisors is an integer number (95634778524).

Almost surely, 2^{2212020100221} is an apocalyptic number.

It is an amenable number.

2212020100221 is a deficient number, since it is larger than the sum of its proper divisors (848292812547).

2212020100221 is a wasteful number, since it uses less digits than its factorization.

2212020100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256061.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2212020100221 its reverse (1220010202122), we get a palindrome (3432030302343).

The spelling of 2212020100221 in words is "two trillion, two hundred twelve billion, twenty million, one hundred thousand, two hundred twenty-one".