221120221302 has 16 divisors (see below), whose sum is σ = 491378269680. Its totient is φ = 73706740416.

The previous prime is 221120221241. The next prime is 221120221369. The reversal of 221120221302 is 203122021122.

221120221302 is a `hidden beast` number, since 2 + 21 + 120 + 221 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047409403 + ... + 2047409510.

It is an arithmetic number, because the mean of its divisors is an integer number (30711141855).

Almost surely, 2^221120221302 is an apocalyptic number.

221120221302 is an abundant number, since it is smaller than the sum of its proper divisors (270258048378).

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

221120221302 is a wasteful number, since it uses less digits than its factorization.

221120221302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094818924 (or 4094818918 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221120221302 its reverse (203122021122), we get a palindrome (424242242424).

The spelling of 221120221302 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, three hundred two".