121411620 has 144 divisors (see below), whose sum is σ = 425513088. Its totient is φ = 27694080.

The previous prime is 121411613. The next prime is 121411627. The reversal of 121411620 is 26114121.

121411620 is a `hidden beast` number, since 1 + 2 + 1 + 41 + 1 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (121411613) and next prime (121411627).

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

It is a junction number, because it is equal to n+sod(n) for n = 121411593 and 121411602.

It is not an unprimeable number, because it can be changed into a prime (121411627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31857 + ... + 35463.

It is an arithmetic number, because the mean of its divisors is an integer number (2954952).

Almost surely, 2^121411620 is an apocalyptic number.

121411620 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 121411620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212756544).

121411620 is an abundant number, since it is smaller than the sum of its proper divisors (304101468).

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

121411620 is a wasteful number, since it uses less digits than its factorization.

121411620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 121411620 is about 11018.6941150029. The cubic root of 121411620 is about 495.1689658868.

Adding to 121411620 its reverse (26114121), we get a palindrome (147525741).

The spelling of 121411620 in words is "one hundred twenty-one million, four hundred eleven thousand, six hundred twenty".