1013310232221 has 32 divisors (see below), whose sum is σ = 1591236718848. Its totient is φ = 561461898240.

The previous prime is 1013310232219. The next prime is 1013310232229. The reversal of 1013310232221 is 1222320133101.

It is not a de Polignac number, because 1013310232221 - 2¹ = 1013310232219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013310232229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1997820 + ... + 2453141.

It is an arithmetic number, because the mean of its divisors is an integer number (49726147464).

Almost surely, 2^{1013310232221} is an apocalyptic number.

It is an amenable number.

1013310232221 is a deficient number, since it is larger than the sum of its proper divisors (577926486627).

1013310232221 is a wasteful number, since it uses less digits than its factorization.

1013310232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451301.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1013310232221 its reverse (1222320133101), we get a palindrome (2235630365322).

The spelling of 1013310232221 in words is "one trillion, thirteen billion, three hundred ten million, two hundred thirty-two thousand, two hundred twenty-one".