221210113412 has 48 divisors (see below), whose sum is σ = 413248617600. Its totient is φ = 103312454400.

The previous prime is 221210113373. The next prime is 221210113427. The reversal of 221210113412 is 214311012122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730912 + ... + 1854312.

It is an arithmetic number, because the mean of its divisors is an integer number (8609346200).

Almost surely, 2^221210113412 is an apocalyptic number.

It is an amenable number.

221210113412 is a deficient number, since it is larger than the sum of its proper divisors (192038504188).

221210113412 is a wasteful number, since it uses less digits than its factorization.

221210113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123756 (or 123754 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221210113412 its reverse (214311012122), we get a palindrome (435521125534).

The spelling of 221210113412 in words is "two hundred twenty-one billion, two hundred ten million, one hundred thirteen thousand, four hundred twelve".