1213222213201 has 16 divisors (see below), whose sum is σ = 1242775298560. Its totient is φ = 1184013573120.

The previous prime is 1213222213169. The next prime is 1213222213211. The reversal of 1213222213201 is 1023122223121.

It is a cyclic number.

It is not a de Polignac number, because 1213222213201 - 2⁵ = 1213222213169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213222213211) 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, 4326016 + ... + 4597918.

It is an arithmetic number, because the mean of its divisors is an integer number (77673456160).

Almost surely, 2^{1213222213201} is an apocalyptic number.

It is an amenable number.

1213222213201 is a deficient number, since it is larger than the sum of its proper divisors (29553085359).

1213222213201 is a wasteful number, since it uses less digits than its factorization.

1213222213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272536.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1213222213201 its reverse (1023122223121), we get a palindrome (2236344436322).

The spelling of 1213222213201 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred one".