2221012212201 has 64 divisors (see below), whose sum is σ = 3411955814400. Its totient is φ = 1426954148928.

The previous prime is 2221012212187. The next prime is 2221012212227. The reversal of 2221012212201 is 1022122101222.

It is a happy number.

2221012212201 is a `hidden beast` number, since 2 + 221 + 0 + 1 + 221 + 220 + 1 = 666.

It is not a de Polignac number, because 2221012212201 - 2²³ = 2221003823593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221012212401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 315346786 + ... + 315353828.

It is an arithmetic number, because the mean of its divisors is an integer number (53311809600).

Almost surely, 2^{2221012212201} is an apocalyptic number.

It is an amenable number.

2221012212201 is a deficient number, since it is larger than the sum of its proper divisors (1190943602199).

2221012212201 is a wasteful number, since it uses less digits than its factorization.

2221012212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875 (or 10869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221012212201 its reverse (1022122101222), we get a palindrome (3243134313423).

The spelling of 2221012212201 in words is "two trillion, two hundred twenty-one billion, twelve million, two hundred twelve thousand, two hundred one".