212122221211201 has 8 divisors (see below), whose sum is σ = 242447882111424. Its totient is φ = 181802181921360.

The previous prime is 212122221211193. The next prime is 212122221211273. The reversal of 212122221211201 is 102112122221212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212122221211201 - 2³ = 212122221211193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212122221211001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405321735 + ... + 1405472668.

It is an arithmetic number, because the mean of its divisors is an integer number (30305985263928).

Almost surely, 2^{212122221211201} is an apocalyptic number.

It is an amenable number.

212122221211201 is a deficient number, since it is larger than the sum of its proper divisors (30325660900223).

212122221211201 is a wasteful number, since it uses less digits than its factorization.

212122221211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810805191.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212122221211201 its reverse (102112122221212), we get a palindrome (314234343432413).

The spelling of 212122221211201 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred one".