10221770730 has 32 divisors (see below), whose sum is σ = 24611154048. Its totient is φ = 2717038400.

The previous prime is 10221770723. The next prime is 10221770743. The reversal of 10221770730 is 3707712201.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 538461 + ... + 557120.

It is an arithmetic number, because the mean of its divisors is an integer number (769098564).

Almost surely, 2^10221770730 is an apocalyptic number.

10221770730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221770730 is an abundant number, since it is smaller than the sum of its proper divisors (14389383318).

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

10221770730 is a wasteful number, since it uses less digits than its factorization.

10221770730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095902.

The product of its (nonzero) digits is 4116, while the sum is 30.

The spelling of 10221770730 in words is "ten billion, two hundred twenty-one million, seven hundred seventy thousand, seven hundred thirty".