2212021222021 has 32 divisors (see below), whose sum is σ = 2647799884800. Its totient is φ = 1828242109440.

The previous prime is 2212021222013. The next prime is 2212021222057. The reversal of 2212021222021 is 1202221202122.

It is a cyclic number.

It is not a de Polignac number, because 2212021222021 - 2³ = 2212021222013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212021222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212021222421) 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, 2332026 + ... + 3140443.

It is an arithmetic number, because the mean of its divisors is an integer number (82743746400).

Almost surely, 2^{2212021222021} is an apocalyptic number.

It is an amenable number.

2212021222021 is a deficient number, since it is larger than the sum of its proper divisors (435778662779).

2212021222021 is a wasteful number, since it uses less digits than its factorization.

2212021222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472589.

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

Adding to 2212021222021 its reverse (1202221202122), we get a palindrome (3414242424143).

The spelling of 2212021222021 in words is "two trillion, two hundred twelve billion, twenty-one million, two hundred twenty-two thousand, twenty-one".