2121101100022 has 8 divisors (see below), whose sum is σ = 3193749185616. Its totient is φ = 1056518038152.

The previous prime is 2121101100007. The next prime is 2121101100023. The reversal of 2121101100022 is 2200011011212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121101099975 and 2121101100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121101100023) 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, 2016255273 + ... + 2016256324.

It is an arithmetic number, because the mean of its divisors is an integer number (399218648202).

Almost surely, 2^{2121101100022} is an apocalyptic number.

2121101100022 is a deficient number, since it is larger than the sum of its proper divisors (1072648085594).

2121101100022 is a wasteful number, since it uses less digits than its factorization.

2121101100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032511862.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2121101100022 its reverse (2200011011212), we get a palindrome (4321112111234).

The spelling of 2121101100022 in words is "two trillion, one hundred twenty-one billion, one hundred one million, one hundred thousand, twenty-two".