2121121110022 has 8 divisors (see below), whose sum is σ = 3181816741536. Its totient is φ = 1060515529512.

The previous prime is 2121121110013. The next prime is 2121121110041. The reversal of 2121121110022 is 2200111211212.

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

It is a super-2 number, since 2×2121121110022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121121109978 and 2121121110005.

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, 22453833 + ... + 22548100.

It is an arithmetic number, because the mean of its divisors is an integer number (397727092692).

Almost surely, 2^{2121121110022} is an apocalyptic number.

2121121110022 is a deficient number, since it is larger than the sum of its proper divisors (1060695631514).

2121121110022 is a wasteful number, since it uses less digits than its factorization.

2121121110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45025502.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121121110022 its reverse (2200111211212), we get a palindrome (4321232321234).

The spelling of 2121121110022 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred ten thousand, twenty-two".