121024620 has 216 divisors, whose sum is σ = 405804672. Its totient is φ = 29145600.

The previous prime is 121024613. The next prime is 121024621. The reversal of 121024620 is 26420121.

121024620 is a `hidden beast` number, since 1 + 21 + 0 + 24 + 620 = 666.

It is a super-2 number, since 2×121024620² = 29293917292288800, which contains 22 as substring.

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 = 121024593 and 121024602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121024621) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2951800 + ... + 2951840.

Almost surely, 2^121024620 is an apocalyptic number.

121024620 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 121024620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202902336).

121024620 is an abundant number, since it is smaller than the sum of its proper divisors (284780052).

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

121024620 is a wasteful number, since it uses less digits than its factorization.

121024620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121024620 is about 11001.1190339892. The cubic root of 121024620 is about 494.6422882408.

Adding to 121024620 its reverse (26420121), we get a palindrome (147444741).

The spelling of 121024620 in words is "one hundred twenty-one million, twenty-four thousand, six hundred twenty".