221616001362 has 24 divisors (see below), whose sum is σ = 515596412016. Its totient is φ = 63318857448.

The previous prime is 221616001357. The next prime is 221616001427. The reversal of 221616001362 is 263100616122.

221616001362 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221616001362² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376897668 + ... + 376898255.

It is an arithmetic number, because the mean of its divisors is an integer number (21483183834).

Almost surely, 2^221616001362 is an apocalyptic number.

221616001362 is an abundant number, since it is smaller than the sum of its proper divisors (293980410654).

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

221616001362 is a wasteful number, since it uses less digits than its factorization.

221616001362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753795942 (or 753795935 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 221616001362 its reverse (263100616122), we get a palindrome (484716617484).

The spelling of 221616001362 in words is "two hundred twenty-one billion, six hundred sixteen million, one thousand, three hundred sixty-two".