122215502 has 4 divisors (see below), whose sum is σ = 183323256. Its totient is φ = 61107750.

The previous prime is 122215501. The next prime is 122215517. The reversal of 122215502 is 205512221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 205512221 = 311 ⋅660811.

It is a super-2 number, since 2×122215502² = 29873257858224008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122215501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553874 + ... + 30553877.

It is an arithmetic number, because the mean of its divisors is an integer number (45830814).

Almost surely, 2^122215502 is an apocalyptic number.

122215502 is a deficient number, since it is larger than the sum of its proper divisors (61107754).

122215502 is an equidigital number, since it uses as much as digits as its factorization.

122215502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61107753.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 122215502 is about 11055.1120301877. The cubic root of 122215502 is about 496.2594219353.

Adding to 122215502 its reverse (205512221), we get a palindrome (327727723).

The spelling of 122215502 in words is "one hundred twenty-two million, two hundred fifteen thousand, five hundred two".