222012100001 has 4 divisors (see below), whose sum is σ = 222015558912. Its totient is φ = 222008641092.

The previous prime is 222012099989. The next prime is 222012100031. The reversal of 222012100001 is 100001210222.

It is a happy number.

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-222012100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222012100031) 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, 1631321 + ... + 1762166.

It is an arithmetic number, because the mean of its divisors is an integer number (55503889728).

Almost surely, 2^222012100001 is an apocalyptic number.

It is an amenable number.

222012100001 is a deficient number, since it is larger than the sum of its proper divisors (3458911).

222012100001 is an equidigital number, since it uses as much as digits as its factorization.

222012100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458910.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 222012100001 its reverse (100001210222), we get a palindrome (322013310223).

The spelling of 222012100001 in words is "two hundred twenty-two billion, twelve million, one hundred thousand, one".