221960006 has 16 divisors (see below), whose sum is σ = 340768080. Its totient is φ = 108395040.

The previous prime is 221959951. The next prime is 221960009. The reversal of 221960006 is 600069122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221960009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12536 + ... + 24516.

It is an arithmetic number, because the mean of its divisors is an integer number (21298005).

Almost surely, 2^221960006 is an apocalyptic number.

221960006 is a deficient number, since it is larger than the sum of its proper divisors (118808074).

221960006 is a wasteful number, since it uses less digits than its factorization.

221960006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 221960006 is about 14898.3222545359. The cubic root of 221960006 is about 605.4685312620.

The spelling of 221960006 in words is "two hundred twenty-one million, nine hundred sixty thousand, six".