221441012412 has 24 divisors (see below), whose sum is σ = 519582268800. Its totient is φ = 73401303216.

The previous prime is 221441012383. The next prime is 221441012431. The reversal of 221441012412 is 214210144122.

It is a happy number.

It is a super-2 number, since 2×221441012412² (a number of 23 digits) contains 22 as substring.

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, 51543712 + ... + 51548007.

It is an arithmetic number, because the mean of its divisors is an integer number (21649261200).

Almost surely, 2^221441012412 is an apocalyptic number.

It is an amenable number.

221441012412 is an abundant number, since it is smaller than the sum of its proper divisors (298141256388).

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

221441012412 is a wasteful number, since it uses less digits than its factorization.

221441012412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103091905 (or 103091903 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 221441012412 its reverse (214210144122), we get a palindrome (435651156534).

The spelling of 221441012412 in words is "two hundred twenty-one billion, four hundred forty-one million, twelve thousand, four hundred twelve".