10720221093 has 24 divisors (see below), whose sum is σ = 15653805336. Its totient is φ = 7069171200.

The previous prime is 10720221067. The next prime is 10720221137. The reversal of 10720221093 is 39012202701.

It can be written as a sum of positive squares in 4 ways, for example, as 1741142529 + 8979078564 = 41727^2 + 94758^2 .

It is not a de Polignac number, because 10720221093 - 2¹⁷ = 10720090021 is a prime.

It is a super-2 number, since 2×10720221093² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10720221053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331003 + ... + 361943.

It is an arithmetic number, because the mean of its divisors is an integer number (652241889).

Almost surely, 2^10720221093 is an apocalyptic number.

It is an amenable number.

10720221093 is a deficient number, since it is larger than the sum of its proper divisors (4933584243).

10720221093 is a wasteful number, since it uses less digits than its factorization.

10720221093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31365 (or 31362 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

Adding to 10720221093 its reverse (39012202701), we get a palindrome (49732423794).

The spelling of 10720221093 in words is "ten billion, seven hundred twenty million, two hundred twenty-one thousand, ninety-three".