60221220 has 48 divisors (see below), whose sum is σ = 174064128. Its totient is φ = 15540480.

The previous prime is 60221219. The next prime is 60221221. The reversal of 60221220 is 2212206.

It is an interprime number because it is at equal distance from previous prime (60221219) and next prime (60221221).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 60221220.

It is not an unprimeable number, because it can be changed into a prime (60221221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14329 + ... + 18048.

It is an arithmetic number, because the mean of its divisors is an integer number (3626336).

Almost surely, 2^60221220 is an apocalyptic number.

60221220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60221220 is an abundant number, since it is smaller than the sum of its proper divisors (113842908).

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

60221220 is a wasteful number, since it uses less digits than its factorization.

60221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32420 (or 32418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 60221220 is about 7760.2332439174. The cubic root of 60221220 is about 391.9673112406.

Adding to 60221220 its reverse (2212206), we get a palindrome (62433426).

The spelling of 60221220 in words is "sixty million, two hundred twenty-one thousand, two hundred twenty".