2021122101222 has 96 divisors (see below), whose sum is σ = 5345971555392. Its totient is φ = 538685263872.

The previous prime is 2021122101199. The next prime is 2021122101233. The reversal of 2021122101222 is 2221012211202.

It is a happy number.

2021122101222 is a `hidden beast` number, since 20 + 211 + 2 + 210 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2021122101195 and 2021122101204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3933033 + ... + 4417124.

It is an arithmetic number, because the mean of its divisors is an integer number (55687203702).

Almost surely, 2^{2021122101222} is an apocalyptic number.

2021122101222 is an abundant number, since it is smaller than the sum of its proper divisors (3324849454170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021122101222 is a wasteful number, since it uses less digits than its factorization.

2021122101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350302 (or 8350299 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2021122101222 its reverse (2221012211202), we get a palindrome (4242134312424).

The spelling of 2021122101222 in words is "two trillion, twenty-one billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty-two".