151222 has 4 divisors (see below), whose sum is σ = 226836. Its totient is φ = 75610.

The previous prime is 151213. The next prime is 151237. The reversal of 151222 is 222151.

151222 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37804 + ... + 37807.

It is an arithmetic number, because the mean of its divisors is an integer number (56709).

2¹⁵¹²²² is an apocalyptic number.

151222 is a deficient number, since it is larger than the sum of its proper divisors (75614).

151222 is an equidigital number, since it uses as much as digits as its factorization.

151222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75613.

The product of its digits is 40, while the sum is 13.

The square root of 151222 is about 388.8727298230. The cubic root of 151222 is about 53.2768238269.

Adding to 151222 its reverse (222151), we get a palindrome (373373).

It can be divided in two parts, 151 and 222, that added together give a palindrome (373).

The spelling of 151222 in words is "one hundred fifty-one thousand, two hundred twenty-two".