1222010111 has 8 divisors (see below), whose sum is σ = 1441634304. Its totient is φ = 1013648760.

The previous prime is 1222010093. The next prime is 1222010147. The reversal of 1222010111 is 1110102221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222010111 - 2²⁶ = 1154901247 is a prime.

It is a super-2 number, since 2×1222010111² = 2986617422772464642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222010092 and 1222010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010161) 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, 2815475 + ... + 2815908.

It is an arithmetic number, because the mean of its divisors is an integer number (180204288).

Almost surely, 2^1222010111 is an apocalyptic number.

1222010111 is a deficient number, since it is larger than the sum of its proper divisors (219624193).

1222010111 is an equidigital number, since it uses as much as digits as its factorization.

1222010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631421.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1222010111 is about 34957.2612056494. The cubic root of 1222010111 is about 1069.1162560542.

Adding to 1222010111 its reverse (1110102221), we get a palindrome (2332112332).

The spelling of 1222010111 in words is "one billion, two hundred twenty-two million, ten thousand, one hundred eleven".