122140400 has 30 divisors (see below), whose sum is σ = 293443272. Its totient is φ = 48856000.

The previous prime is 122140313. The next prime is 122140409. The reversal of 122140400 is 4041221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122140409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152276 + ... + 153075.

Almost surely, 2^122140400 is an apocalyptic number.

122140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122140400 is an abundant number, since it is smaller than the sum of its proper divisors (171302872).

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

122140400 is a wasteful number, since it uses less digits than its factorization.

122140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305369 (or 305358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 122140400 is about 11051.7147990708. The cubic root of 122140400 is about 496.1577498580.

Adding to 122140400 its reverse (4041221), we get a palindrome (126181621).

It can be divided in two parts, 12 and 2140400, that added together give a palindrome (2140412).

The spelling of 122140400 in words is "one hundred twenty-two million, one hundred forty thousand, four hundred".