2121201000022 has 16 divisors (see below), whose sum is σ = 3426584020272. Its totient is φ = 979007686560.

The previous prime is 2121201000019. The next prime is 2121201000047. The reversal of 2121201000022 is 2200001021212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2121200999966 and 2121201000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3782913 + ... + 4307299.

It is an arithmetic number, because the mean of its divisors is an integer number (214161501267).

Almost surely, 2^{2121201000022} is an apocalyptic number.

2121201000022 is a deficient number, since it is larger than the sum of its proper divisors (1305383020250).

2121201000022 is a wasteful number, since it uses less digits than its factorization.

2121201000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679983.

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

Adding to 2121201000022 its reverse (2200001021212), we get a palindrome (4321202021234).

The spelling of 2121201000022 in words is "two trillion, one hundred twenty-one billion, two hundred one million, twenty-two", and thus it is an aban number.