121010620 has 96 divisors (see below), whose sum is σ = 282240000. Its totient is φ = 43400448.

The previous prime is 121010581. The next prime is 121010633. The reversal of 121010620 is 26010121.

It is a self number, because there is not a number n which added to its sum of digits gives 121010620.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 870511 + ... + 870649.

It is an arithmetic number, because the mean of its divisors is an integer number (2940000).

Almost surely, 2^121010620 is an apocalyptic number.

121010620 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 121010620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141120000).

121010620 is an abundant number, since it is smaller than the sum of its proper divisors (161229380).

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

121010620 is a wasteful number, since it uses less digits than its factorization.

121010620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121010620 is about 11000.4827166811. The cubic root of 121010620 is about 494.6232142731.

Adding to 121010620 its reverse (26010121), we get a palindrome (147020741).

The spelling of 121010620 in words is "one hundred twenty-one million, ten thousand, six hundred twenty".