10721101010 has 16 divisors (see below), whose sum is σ = 19325523672. Its totient is φ = 4282320000.

The previous prime is 10721100991. The next prime is 10721101037. The reversal of 10721101010 is 1010112701.

It can be written as a sum of positive squares in 4 ways, for example, as 10586146321 + 134954689 = 102889^2 + 11617^2 .

It is a super-2 number, since 2×10721101010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757691 + ... + 771710.

Almost surely, 2^10721101010 is an apocalyptic number.

10721101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10721101010 is a deficient number, since it is larger than the sum of its proper divisors (8604422662).

10721101010 is a wasteful number, since it uses less digits than its factorization.

10721101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530109.

The product of its (nonzero) digits is 14, while the sum is 14.

Adding to 10721101010 its reverse (1010112701), we get a palindrome (11731213711).

The spelling of 10721101010 in words is "ten billion, seven hundred twenty-one million, one hundred one thousand, ten".