222120012102211 has 4 divisors (see below), whose sum is σ = 222300450781024. Its totient is φ = 221939573423400.

The previous prime is 222120012102181. The next prime is 222120012102217. The reversal of 222120012102211 is 112201210021222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222120012102211 - 2¹⁷ = 222120011971139 is a prime.

It is a super-2 number, since 2×222120012102211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120012102217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90219337560 + ... + 90219340021.

It is an arithmetic number, because the mean of its divisors is an integer number (55575112695256).

Almost surely, 2^{222120012102211} is an apocalyptic number.

222120012102211 is a deficient number, since it is larger than the sum of its proper divisors (180438678813).

222120012102211 is a wasteful number, since it uses less digits than its factorization.

222120012102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180438678812.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222120012102211 its reverse (112201210021222), we get a palindrome (334321222123433).

The spelling of 222120012102211 in words is "two hundred twenty-two trillion, one hundred twenty billion, twelve million, one hundred two thousand, two hundred eleven".