122111420 has 12 divisors (see below), whose sum is σ = 256434024. Its totient is φ = 48844560.

The previous prime is 122111419. The next prime is 122111441. The reversal of 122111420 is 24111221.

It is a happy number.

It is a super-2 number, since 2×122111420² = 29822397788832800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111395 and 122111404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052766 + ... + 3052805.

It is an arithmetic number, because the mean of its divisors is an integer number (21369502).

Almost surely, 2^122111420 is an apocalyptic number.

122111420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111420 is an abundant number, since it is smaller than the sum of its proper divisors (134322604).

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

122111420 is a wasteful number, since it uses less digits than its factorization.

122111420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105580 (or 6105578 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 122111420 is about 11050.4036125383. The cubic root of 122111420 is about 496.1185059798.

Adding to 122111420 its reverse (24111221), we get a palindrome (146222641).

It can be divided in two parts, 12211 and 1420, that added together give a palindrome (13631).

The spelling of 122111420 in words is "one hundred twenty-two million, one hundred eleven thousand, four hundred twenty".