221220011202 has 8 divisors (see below), whose sum is σ = 442440022416. Its totient is φ = 73740003732.

The previous prime is 221220011147. The next prime is 221220011209. The reversal of 221220011202 is 202110022122.

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

221220011202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (221220011209) 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, 18435000928 + ... + 18435000939.

It is an arithmetic number, because the mean of its divisors is an integer number (55305002802).

Almost surely, 2^221220011202 is an apocalyptic number.

221220011202 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.

221220011202 is a wasteful number, since it uses less digits than its factorization.

221220011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36870001872.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221220011202 its reverse (202110022122), we get a palindrome (423330033324).

The spelling of 221220011202 in words is "two hundred twenty-one billion, two hundred twenty million, eleven thousand, two hundred two".