60221620 has 36 divisors (see below), whose sum is σ = 130029732. Its totient is φ = 23414400.

The previous prime is 60221587. The next prime is 60221627. The reversal of 60221620 is 2612206.

It can be written as a sum of positive squares in 2 ways, for example, as 10575504 + 49646116 = 3252^2 + 7046^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60221627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222085 + ... + 222355.

It is an arithmetic number, because the mean of its divisors is an integer number (3611937).

Almost surely, 2^60221620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60221620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65014866).

60221620 is an abundant number, since it is smaller than the sum of its proper divisors (69808112).

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

60221620 is a wasteful number, since it uses less digits than its factorization.

60221620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 60221620 is about 7760.2590162958. The cubic root of 60221620 is about 391.9681790774.

Adding to 60221620 its reverse (2612206), we get a palindrome (62833826).

It can be divided in two parts, 602 and 21620, that added together give a palindrome (22222).

The spelling of 60221620 in words is "sixty million, two hundred twenty-one thousand, six hundred twenty".