1022222212211 has 4 divisors (see below), whose sum is σ = 1022251232712. Its totient is φ = 1022193191712.

The previous prime is 1022222212177. The next prime is 1022222212217. The reversal of 1022222212211 is 1122122222201.

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 1022222212211 - 2⁶ = 1022222212147 is a prime.

It is a super-2 number, since 2×1022222212211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022222212217) 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, 14457350 + ... + 14527883.

It is an arithmetic number, because the mean of its divisors is an integer number (255562808178).

Almost surely, 2^{1022222212211} is an apocalyptic number.

1022222212211 is a deficient number, since it is larger than the sum of its proper divisors (29020501).

1022222212211 is an equidigital number, since it uses as much as digits as its factorization.

1022222212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29020500.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1022222212211 its reverse (1122122222201), we get a palindrome (2144344434412).

The spelling of 1022222212211 in words is "one trillion, twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred eleven".