2122210222021 has 8 divisors (see below), whose sum is σ = 2263211919360. Its totient is φ = 1983004724928.

The previous prime is 2122210221991. The next prime is 2122210222057. The reversal of 2122210222021 is 1202220122212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122210222021 is a prime.

It is a super-2 number, since 2×2122210222021² (a number of 25 digits) contains 22 as substring.

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 2122210222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122210252021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449047621 + ... + 449052346.

It is an arithmetic number, because the mean of its divisors is an integer number (282901489920).

Almost surely, 2^{2122210222021} is an apocalyptic number.

It is an amenable number.

2122210222021 is a deficient number, since it is larger than the sum of its proper divisors (141001697339).

2122210222021 is a wasteful number, since it uses less digits than its factorization.

2122210222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898100123.

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

Adding to 2122210222021 its reverse (1202220122212), we get a palindrome (3324430344233).

The spelling of 2122210222021 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-two thousand, twenty-one".