60121221 has 8 divisors (see below), whose sum is σ = 80238720. Its totient is φ = 40042272.

The previous prime is 60121213. The next prime is 60121249. The reversal of 60121221 is 12212106.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60121221 - 2³ = 60121213 is a prime.

It is a super-2 number, since 2×60121221² = 7229122429061682, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 60121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60121921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5776 + ... + 12393.

It is an arithmetic number, because the mean of its divisors is an integer number (10029840).

Almost surely, 2^60121221 is an apocalyptic number.

It is an amenable number.

60121221 is a deficient number, since it is larger than the sum of its proper divisors (20117499).

60121221 is a wasteful number, since it uses less digits than its factorization.

60121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19275.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 60121221 is about 7753.7875261062. The cubic root of 60121221 is about 391.7502335243.

Adding to 60121221 its reverse (12212106), we get a palindrome (72333327).

The spelling of 60121221 in words is "sixty million, one hundred twenty-one thousand, two hundred twenty-one".