1222113 has 16 divisors (see below), whose sum is σ = 1783296. Its totient is φ = 741120.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222113 is 3112221.

It is an interprime number because it is at equal distance from previous prime (1222097) and next prime (1222129).

It is not a de Polignac number, because 1222113 - 2⁴ = 1222097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195 + ... + 1967.

It is an arithmetic number, because the mean of its divisors is an integer number (111456).

2^1222113 is an apocalyptic number.

It is an amenable number.

1222113 is a deficient number, since it is larger than the sum of its proper divisors (561183).

1222113 is a wasteful number, since it uses less digits than its factorization.

1222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its digits is 24, while the sum is 12.

The square root of 1222113 is about 1105.4921980729. The cubic root of 1222113 is about 106.9146260502.

Adding to 1222113 its reverse (3112221), we get a palindrome (4334334).

It can be divided in two parts, 12 and 22113, that multiplied together give a triangular number (265356 = T₇₂₈).

The spelling of 1222113 in words is "one million, two hundred twenty-two thousand, one hundred thirteen".