2121221022022 has 8 divisors (see below), whose sum is σ = 3181839838056. Its totient is φ = 1060607742672.

The previous prime is 2121221022001. The next prime is 2121221022029. The reversal of 2121221022022 is 2202201221212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121221022029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235828 + ... + 2073175.

It is an arithmetic number, because the mean of its divisors is an integer number (397729979757).

Almost surely, 2^{2121221022022} is an apocalyptic number.

2121221022022 is a deficient number, since it is larger than the sum of its proper divisors (1060618816034).

2121221022022 is a wasteful number, since it uses less digits than its factorization.

2121221022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768342.

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

Adding to 2121221022022 its reverse (2202201221212), we get a palindrome (4323422243234).

The spelling of 2121221022022 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-one million, twenty-two thousand, twenty-two".