1522222151 has 4 divisors (see below), whose sum is σ = 1574712600. Its totient is φ = 1469731704.

The previous prime is 1522222147. The next prime is 1522222157. The reversal of 1522222151 is 1512222251.

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 1522222151 - 2² = 1522222147 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 (1522222157) 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, 26245181 + ... + 26245238.

It is an arithmetic number, because the mean of its divisors is an integer number (393678150).

Almost surely, 2^1522222151 is an apocalyptic number.

1522222151 is a deficient number, since it is larger than the sum of its proper divisors (52490449).

1522222151 is an equidigital number, since it uses as much as digits as its factorization.

1522222151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52490448.

The product of its digits is 800, while the sum is 23.

The square root of 1522222151 is about 39015.6654563266. The cubic root of 1522222151 is about 1150.3394463614.

It can be divided in two parts, 15222 and 22151, that added together give a palindrome (37373).

The spelling of 1522222151 in words is "one billion, five hundred twenty-two million, two hundred twenty-two thousand, one hundred fifty-one".