121322340 has 96 divisors (see below), whose sum is σ = 379680000. Its totient is φ = 32161536.

The previous prime is 121322339. The next prime is 121322347. The reversal of 121322340 is 43223121.

121322340 is a `hidden beast` number, since 1 + 2 + 1 + 322 + 340 = 666.

It is a super-2 number, since 2×121322340² = 29438220366151200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121322347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106896 + ... + 108024.

It is an arithmetic number, because the mean of its divisors is an integer number (3955000).

Almost surely, 2^121322340 is an apocalyptic number.

121322340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121322340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189840000).

121322340 is an abundant number, since it is smaller than the sum of its proper divisors (258357660).

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

121322340 is a wasteful number, since it uses less digits than its factorization.

121322340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 121322340 is about 11014.6420731679. The cubic root of 121322340 is about 495.0475620047.

Adding to 121322340 its reverse (43223121), we get a palindrome (164545461).

The spelling of 121322340 in words is "one hundred twenty-one million, three hundred twenty-two thousand, three hundred forty".