221132012202 has 160 divisors (see below), whose sum is σ = 528555646080. Its totient is φ = 68901580800.

The previous prime is 221132012197. The next prime is 221132012243. The reversal of 221132012202 is 202210231122.

221132012202 is a `hidden beast` number, since 221 + 1 + 320 + 122 + 0 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 119724043 + ... + 119725889.

It is an arithmetic number, because the mean of its divisors is an integer number (3303472788).

Almost surely, 2^221132012202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221132012202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264277823040).

221132012202 is an abundant number, since it is smaller than the sum of its proper divisors (307423633878).

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

221132012202 is a wasteful number, since it uses less digits than its factorization.

221132012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2369 counting only the distinct ones).

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

Adding to 221132012202 its reverse (202210231122), we get a palindrome (423342243324).

The spelling of 221132012202 in words is "two hundred twenty-one billion, one hundred thirty-two million, twelve thousand, two hundred two".