122111331 has 8 divisors (see below), whose sum is σ = 162878544. Its totient is φ = 81375840.

The previous prime is 122111329. The next prime is 122111333. The reversal of 122111331 is 133111221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122111329) and next prime (122111333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122111331 - 2¹ = 122111329 is a prime.

It is a super-2 number, since 2×122111331² = 29822354317183122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122111331.

It is not an unprimeable number, because it can be changed into a prime (122111333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3345 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (20359818).

Almost surely, 2^122111331 is an apocalyptic number.

122111331 is a deficient number, since it is larger than the sum of its proper divisors (40767213).

122111331 is a wasteful number, since it uses less digits than its factorization.

122111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15861.

The product of its digits is 36, while the sum is 15.

The square root of 122111331 is about 11050.3995855354. The cubic root of 122111331 is about 496.1183854490.

Adding to 122111331 its reverse (133111221), we get a palindrome (255222552).

The spelling of 122111331 in words is "one hundred twenty-two million, one hundred eleven thousand, three hundred thirty-one".