221441001102 has 12 divisors (see below), whose sum is σ = 479788835760. Its totient is φ = 73813667028.

The previous prime is 221441001073. The next prime is 221441001121. The reversal of 221441001102 is 201100144122.

221441001102 is a `hidden beast` number, since 221 + 441 + 0 + 0 + 1 + 1 + 0 + 2 = 666.

It is a super-2 number, since 2×221441001102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12302277839 = 221441001102 / (2 + 2 + 1 + 4 + 4 + 1 + 0 + 0 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6151138902 + ... + 6151138937.

It is an arithmetic number, because the mean of its divisors is an integer number (39982402980).

Almost surely, 2^221441001102 is an apocalyptic number.

221441001102 is an abundant number, since it is smaller than the sum of its proper divisors (258347834658).

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

221441001102 is a wasteful number, since it uses less digits than its factorization.

221441001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302277847 (or 12302277844 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221441001102 its reverse (201100144122), we get a palindrome (422541145224).

The spelling of 221441001102 in words is "two hundred twenty-one billion, four hundred forty-one million, one thousand, one hundred two".