122222212111110 has 64 divisors (see below), whose sum is σ = 301491738185472. Its totient is φ = 31687445736576.

The previous prime is 122222212111099. The next prime is 122222212111127. The reversal of 122222212111110 is 11111212222221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40672452 + ... + 43573991.

It is an arithmetic number, because the mean of its divisors is an integer number (4710808409148).

Almost surely, 2^{122222212111110} is an apocalyptic number.

122222212111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122222212111110 is an abundant number, since it is smaller than the sum of its proper divisors (179269526074362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122222212111110 is a wasteful number, since it uses less digits than its factorization.

122222212111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84247797.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122222212111110 its reverse (11111212222221), we get a palindrome (133333424333331).

The spelling of 122222212111110 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred eleven thousand, one hundred ten".