221014242120 has 128 divisors (see below), whose sum is σ = 772060688640. Its totient is φ = 49564369920.

The previous prime is 221014242047. The next prime is 221014242151. The reversal of 221014242120 is 21242410122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2437671 + ... + 2526710.

It is an arithmetic number, because the mean of its divisors is an integer number (6031724130).

Almost surely, 2^221014242120 is an apocalyptic number.

221014242120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221014242120 is an abundant number, since it is smaller than the sum of its proper divisors (551046446520).

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

221014242120 is a wasteful number, since it uses less digits than its factorization.

221014242120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964455 (or 4964451 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221014242120 its reverse (21242410122), we get a palindrome (242256652242).

The spelling of 221014242120 in words is "two hundred twenty-one billion, fourteen million, two hundred forty-two thousand, one hundred twenty".