221070702 has 8 divisors (see below), whose sum is σ = 442141416. Its totient is φ = 73690232.

The previous prime is 221070659. The next prime is 221070709. The reversal of 221070702 is 207070122.

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

221070702 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221070709) 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, 18422553 + ... + 18422564.

It is an arithmetic number, because the mean of its divisors is an integer number (55267677).

Almost surely, 2^221070702 is an apocalyptic number.

221070702 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221070702 is a wasteful number, since it uses less digits than its factorization.

221070702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36845122.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 221070702 is about 14868.4465227542. The cubic root of 221070702 is about 604.6588263777.

The spelling of 221070702 in words is "two hundred twenty-one million, seventy thousand, seven hundred two".