221201002001012 has 48 divisors (see below), whose sum is σ = 424064742630144. Its totient is φ = 100124062848000.

The previous prime is 221201002000987. The next prime is 221201002001059. The reversal of 221201002001012 is 210100200102122.

It is a congruent number.

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, 233483312 + ... + 234428792.

It is an arithmetic number, because the mean of its divisors is an integer number (8834682138128).

Almost surely, 2^{221201002001012} is an apocalyptic number.

221201002001012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221201002001012 is a deficient number, since it is larger than the sum of its proper divisors (202863740629132).

221201002001012 is a wasteful number, since it uses less digits than its factorization.

221201002001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967800 (or 967798 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221201002001012 its reverse (210100200102122), we get a palindrome (431301202103134).

The spelling of 221201002001012 in words is "two hundred twenty-one trillion, two hundred one billion, two million, one thousand, twelve".