2121100020022 has 8 divisors (see below), whose sum is σ = 3182047313400. Its totient is φ = 1060417582224.

The previous prime is 2121100020019. The next prime is 2121100020041. The reversal of 2121100020022 is 2200200011212.

It is a happy number.

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 = 2121100019984 and 2121100020011.

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, 66193872 + ... + 66225907.

It is an arithmetic number, because the mean of its divisors is an integer number (397755914175).

Almost surely, 2^{2121100020022} is an apocalyptic number.

2121100020022 is a deficient number, since it is larger than the sum of its proper divisors (1060947293378).

2121100020022 is a wasteful number, since it uses less digits than its factorization.

2121100020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132427790.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2121100020022 its reverse (2200200011212), we get a palindrome (4321300031234).

The spelling of 2121100020022 in words is "two trillion, one hundred twenty-one billion, one hundred million, twenty thousand, twenty-two".