2121111202022 has 8 divisors (see below), whose sum is σ = 3181675686672. Its totient is φ = 1060552639800.

The previous prime is 2121111201991. The next prime is 2121111202039. The reversal of 2121111202022 is 2202021111212.

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

It is a super-2 number, since 2×2121111202022² (a number of 25 digits) contains 22 as substring.

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, 438554 + ... + 2105837.

It is an arithmetic number, because the mean of its divisors is an integer number (397709460834).

Almost surely, 2^{2121111202022} is an apocalyptic number.

2121111202022 is a deficient number, since it is larger than the sum of its proper divisors (1060564484650).

2121111202022 is a wasteful number, since it uses less digits than its factorization.

2121111202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961214.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121111202022 its reverse (2202021111212), we get a palindrome (4323132313234).

The spelling of 2121111202022 in words is "two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred two thousand, twenty-two".