121422372 has 12 divisors (see below), whose sum is σ = 283318896. Its totient is φ = 40474120.

The previous prime is 121422341. The next prime is 121422373. The reversal of 121422372 is 273224121.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (121422373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5059254 + ... + 5059277.

It is an arithmetic number, because the mean of its divisors is an integer number (23609908).

Almost surely, 2^121422372 is an apocalyptic number.

121422372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121422372 is an abundant number, since it is smaller than the sum of its proper divisors (161896524).

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

121422372 is a wasteful number, since it uses less digits than its factorization.

121422372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10118538 (or 10118536 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 121422372 is about 11019.1820023085. The cubic root of 121422372 is about 495.1835825535.

Adding to 121422372 its reverse (273224121), we get a palindrome (394646493).

The spelling of 121422372 in words is "one hundred twenty-one million, four hundred twenty-two thousand, three hundred seventy-two".