10221770726 has 8 divisors (see below), whose sum is σ = 15343212864. Its totient is φ = 5107366440.

The previous prime is 10221770723. The next prime is 10221770743. The reversal of 10221770726 is 62707712201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221770723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755830 + ... + 1761641.

It is an arithmetic number, because the mean of its divisors is an integer number (1917901608).

Almost surely, 2^10221770726 is an apocalyptic number.

10221770726 is a deficient number, since it is larger than the sum of its proper divisors (5121442138).

10221770726 is a wasteful number, since it uses less digits than its factorization.

10221770726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518926.

The product of its (nonzero) digits is 16464, while the sum is 35.

The spelling of 10221770726 in words is "ten billion, two hundred twenty-one million, seven hundred seventy thousand, seven hundred twenty-six".