221120120001012 has 48 divisors (see below), whose sum is σ = 516994015104000. Its totient is φ = 73557132955488.

The previous prime is 221120120000957. The next prime is 221120120001013. The reversal of 221120120001012 is 210100021021122.

It is a junction number, because it is equal to n+sod(n) for n = 221120120000982 and 221120120001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120120001013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246635383 + ... + 247530305.

It is an arithmetic number, because the mean of its divisors is an integer number (10770708648000).

Almost surely, 2^{221120120001012} is an apocalyptic number.

It is an amenable number.

221120120001012 is an abundant number, since it is smaller than the sum of its proper divisors (295873895102988).

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

221120120001012 is a wasteful number, since it uses less digits than its factorization.

221120120001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936692 (or 936690 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221120120001012 its reverse (210100021021122), we get a palindrome (431220141022134).

The spelling of 221120120001012 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred twenty million, one thousand, twelve".