121051616 has 48 divisors (see below), whose sum is σ = 273208320. Its totient is φ = 51719040.

The previous prime is 121051613. The next prime is 121051627. The reversal of 121051616 is 616150121.

It is a super-2 number, since 2×121051616² = 29306987472422912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121051591 and 121051600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121051613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97721 + ... + 98951.

It is an arithmetic number, because the mean of its divisors is an integer number (5691840).

Almost surely, 2^121051616 is an apocalyptic number.

121051616 is a gapful number since it is divisible by the number (16) 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 121051616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136604160).

121051616 is an abundant number, since it is smaller than the sum of its proper divisors (152156704).

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

121051616 is a wasteful number, since it uses less digits than its factorization.

121051616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 121051616 is about 11002.3459316638. The cubic root of 121051616 is about 494.6790641476.

The spelling of 121051616 in words is "one hundred twenty-one million, fifty-one thousand, six hundred sixteen".