2121022221022 has 8 divisors (see below), whose sum is σ = 3189467331072. Its totient is φ = 1057866444000.

The previous prime is 2121022221011. The next prime is 2121022221037. The reversal of 2121022221022 is 2201222201212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322332254 + ... + 1322333857.

It is an arithmetic number, because the mean of its divisors is an integer number (398683416384).

Almost surely, 2^{2121022221022} is an apocalyptic number.

2121022221022 is a deficient number, since it is larger than the sum of its proper divisors (1068445110050).

2121022221022 is a wasteful number, since it uses less digits than its factorization.

2121022221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644666514.

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

Adding to 2121022221022 its reverse (2201222201212), we get a palindrome (4322244422234).

The spelling of 2121022221022 in words is "two trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, twenty-two".