121066940 has 36 divisors (see below), whose sum is σ = 265798344. Its totient is φ = 46317216.

The previous prime is 121066937. The next prime is 121066943. The reversal of 121066940 is 49660121.

It is an interprime number because it is at equal distance from previous prime (121066937) and next prime (121066943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121066943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4859 + ... + 16301.

Almost surely, 2^121066940 is an apocalyptic number.

121066940 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 121066940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132899172).

121066940 is an abundant number, since it is smaller than the sum of its proper divisors (144731404).

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

121066940 is a wasteful number, since it uses less digits than its factorization.

121066940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498 (or 11473 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 121066940 is about 11003.0423065623. The cubic root of 121066940 is about 494.6999371779.

The spelling of 121066940 in words is "one hundred twenty-one million, sixty-six thousand, nine hundred forty".