1013201221000 has 64 divisors (see below), whose sum is σ = 2473973124480. Its totient is φ = 387659588800.

The previous prime is 1013201220979. The next prime is 1013201221033. The reversal of 1013201221000 is 1221023101.

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, 22003114 + ... + 22049113.

It is an arithmetic number, because the mean of its divisors is an integer number (38655830070).

Almost surely, 2^{1013201221000} is an apocalyptic number.

1013201221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013201221000 is an abundant number, since it is smaller than the sum of its proper divisors (1460771903480).

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

1013201221000 is a wasteful number, since it uses less digits than its factorization.

1013201221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44052271 (or 44052257 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1013201221000 its reverse (1221023101), we get a palindrome (1014422244101).

The spelling of 1013201221000 in words is "one trillion, thirteen billion, two hundred one million, two hundred twenty-one thousand".