1222829157 has 8 divisors (see below), whose sum is σ = 1778660640. Its totient is φ = 741108560.

The previous prime is 1222829107. The next prime is 1222829171. The reversal of 1222829157 is 7519282221.

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 1222829157 - 2⁶ = 1222829093 is a prime.

It is a super-2 number, since 2×1222829157² = 2990622294418661298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222829107) 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, 18527682 + ... + 18527747.

It is an arithmetic number, because the mean of its divisors is an integer number (222332580).

Almost surely, 2^1222829157 is an apocalyptic number.

It is an amenable number.

1222829157 is a deficient number, since it is larger than the sum of its proper divisors (555831483).

1222829157 is a wasteful number, since it uses less digits than its factorization.

1222829157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37055443.

The product of its digits is 40320, while the sum is 39.

The square root of 1222829157 is about 34968.9742057156. The cubic root of 1222829157 is about 1069.3550592696.

The spelling of 1222829157 in words is "one billion, two hundred twenty-two million, eight hundred twenty-nine thousand, one hundred fifty-seven".