2201321220312 has 64 divisors (see below), whose sum is σ = 5529955484160. Its totient is φ = 730220803200.

The previous prime is 2201321220223. The next prime is 2201321220331. The reversal of 2201321220312 is 2130221231022.

It is a super-2 number, since 2×2201321220312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71756737 + ... + 71787407.

It is an arithmetic number, because the mean of its divisors is an integer number (86405554440).

Almost surely, 2^{2201321220312} is an apocalyptic number.

It is an amenable number.

2201321220312 is an abundant number, since it is smaller than the sum of its proper divisors (3328634263848).

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

2201321220312 is a wasteful number, since it uses less digits than its factorization.

2201321220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45064 (or 45060 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2201321220312 its reverse (2130221231022), we get a palindrome (4331542451334).

The spelling of 2201321220312 in words is "two trillion, two hundred one billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twelve".