2121122100022 has 4 divisors (see below), whose sum is σ = 3181683150036. Its totient is φ = 1060561050010.

The previous prime is 2121122100017. The next prime is 2121122100059. The reversal of 2121122100022 is 2200012211212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121122099969 and 2121122100005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530280525004 + ... + 530280525007.

It is an arithmetic number, because the mean of its divisors is an integer number (795420787509).

Almost surely, 2^{2121122100022} is an apocalyptic number.

2121122100022 is a deficient number, since it is larger than the sum of its proper divisors (1060561050014).

2121122100022 is a wasteful number, since it uses less digits than its factorization.

2121122100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060561050013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2121122100022 its reverse (2200012211212), we get a palindrome (4321134311234).

The spelling of 2121122100022 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred thousand, twenty-two".