2021121200222 has 16 divisors (see below), whose sum is σ = 3248690920272. Its totient is φ = 939656630400.

The previous prime is 2021121200213. The next prime is 2021121200249. The reversal of 2021121200222 is 2220021211202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2021121200222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358098029 + ... + 358103672.

It is an arithmetic number, because the mean of its divisors is an integer number (203043182517).

Almost surely, 2^{2021121200222} is an apocalyptic number.

2021121200222 is a deficient number, since it is larger than the sum of its proper divisors (1227569720050).

2021121200222 is a wasteful number, since it uses less digits than its factorization.

2021121200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716201803.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021121200222 its reverse (2220021211202), we get a palindrome (4241142411424).

The spelling of 2021121200222 in words is "two trillion, twenty-one billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-two".