122621440222 has 4 divisors (see below), whose sum is σ = 183932160336. Its totient is φ = 61310720110.

The previous prime is 122621440217. The next prime is 122621440229. The reversal of 122621440222 is 222044126221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621440229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30655360054 + ... + 30655360057.

It is an arithmetic number, because the mean of its divisors is an integer number (45983040084).

Almost surely, 2^122621440222 is an apocalyptic number.

122621440222 is a deficient number, since it is larger than the sum of its proper divisors (61310720114).

122621440222 is an equidigital number, since it uses as much as digits as its factorization.

122621440222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61310720113.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 122621440222 its reverse (222044126221), we get a palindrome (344665566443).

It can be divided in two parts, 1226214 and 40222, that added together give a triangular number (1266436 = T₁₅₉₁).

The spelling of 122621440222 in words is "one hundred twenty-two billion, six hundred twenty-one million, four hundred forty thousand, two hundred twenty-two".