221120102222012 has 36 divisors (see below), whose sum is σ = 473828790483720. Its totient is φ = 89778086614944.

The previous prime is 221120102221961. The next prime is 221120102222023. The reversal of 221120102222012 is 210222201021122.

It is a super-4 number, since 4×221120102222012⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29688516983 + ... + 29688524430.

It is an arithmetic number, because the mean of its divisors is an integer number (13161910846770).

Almost surely, 2^{221120102222012} is an apocalyptic number.

It is an amenable number.

221120102222012 is an abundant number, since it is smaller than the sum of its proper divisors (252708688261708).

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

221120102222012 is a wasteful number, since it uses less digits than its factorization.

221120102222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59377041450 (or 59377041441 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221120102222012 its reverse (210222201021122), we get a palindrome (431342303243134).

The spelling of 221120102222012 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred two million, two hundred twenty-two thousand, twelve".