1022222111 has 8 divisors (see below), whose sum is σ = 1040484864. Its totient is φ = 1004119200.

The previous prime is 1022222093. The next prime is 1022222147. The reversal of 1022222111 is 1112222201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022222111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022222611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27020 + ... + 52673.

It is an arithmetic number, because the mean of its divisors is an integer number (130060608).

Almost surely, 2^1022222111 is an apocalyptic number.

1022222111 is a deficient number, since it is larger than the sum of its proper divisors (18262753).

1022222111 is a wasteful number, since it uses less digits than its factorization.

1022222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79921.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1022222111 is about 31972.2084160603. The cubic root of 1022222111 is about 1007.3531687168.

Adding to 1022222111 its reverse (1112222201), we get a palindrome (2134444312).

The spelling of 1022222111 in words is "one billion, twenty-two million, two hundred twenty-two thousand, one hundred eleven".