220012211201 has 4 divisors (see below), whose sum is σ = 220014278400. Its totient is φ = 220010144004.

The previous prime is 220012211191. The next prime is 220012211207. The reversal of 220012211201 is 102112210022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220012211201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220012211207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864761 + ... + 1089878.

It is an arithmetic number, because the mean of its divisors is an integer number (55003569600).

Almost surely, 2^220012211201 is an apocalyptic number.

It is an amenable number.

220012211201 is a deficient number, since it is larger than the sum of its proper divisors (2067199).

220012211201 is a wasteful number, since it uses less digits than its factorization.

220012211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067198.

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

Adding to 220012211201 its reverse (102112210022), we get a palindrome (322124421223).

The spelling of 220012211201 in words is "two hundred twenty billion, twelve million, two hundred eleven thousand, two hundred one".