122222122 has 16 divisors (see below), whose sum is σ = 200286432. Its totient is φ = 55475920.

The previous prime is 122222071. The next prime is 122222131. The reversal of 122222122 is 221222221.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 122222096 and 122222105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13413 + ... + 20599.

It is an arithmetic number, because the mean of its divisors is an integer number (12517902).

Almost surely, 2^122222122 is an apocalyptic number.

122222122 is a deficient number, since it is larger than the sum of its proper divisors (78064310).

122222122 is a wasteful number, since it uses less digits than its factorization.

122222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7973.

The product of its digits is 128, while the sum is 16.

The square root of 122222122 is about 11055.4114351299. The cubic root of 122222122 is about 496.2683820045.

Adding to 122222122 its reverse (221222221), we get a palindrome (343444343).

Subtracting 122222122 from its reverse (221222221), we obtain a palindrome (99000099).

It can be divided in two parts, 1222221 and 22, that multiplied together give a palindrome (26888862).

The spelling of 122222122 in words is "one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".