2021110221222 has 12 divisors (see below), whose sum is σ = 4379072146020. Its totient is φ = 673703407068.

The previous prime is 2021110221217. The next prime is 2021110221239. The reversal of 2021110221222 is 2221220111202.

It is a happy number.

2021110221222 is a `hidden beast` number, since 2 + 0 + 211 + 10 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 112283901179 = 2021110221222 / (2 + 0 + 2 + 1 + 1 + 1 + 0 + 2 + 2 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2021110221195 and 2021110221204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56141950572 + ... + 56141950607.

It is an arithmetic number, because the mean of its divisors is an integer number (364922678835).

Almost surely, 2^{2021110221222} is an apocalyptic number.

2021110221222 is an abundant number, since it is smaller than the sum of its proper divisors (2357961924798).

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

2021110221222 is a wasteful number, since it uses less digits than its factorization.

2021110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112283901187 (or 112283901184 counting only the distinct ones).

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

Adding to 2021110221222 its reverse (2221220111202), we get a palindrome (4242330332424).

The spelling of 2021110221222 in words is "two trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".