1222121000201 has 4 divisors (see below), whose sum is σ = 1261544258304. Its totient is φ = 1182697742100.

The previous prime is 1222121000197. The next prime is 1222121000207. The reversal of 1222121000201 is 1020001212221.

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 not a de Polignac number, because 1222121000201 - 2² = 1222121000197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222121000207) 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, 19711629005 + ... + 19711629066.

It is an arithmetic number, because the mean of its divisors is an integer number (315386064576).

Almost surely, 2^{1222121000201} is an apocalyptic number.

It is an amenable number.

1222121000201 is a deficient number, since it is larger than the sum of its proper divisors (39423258103).

1222121000201 is an equidigital number, since it uses as much as digits as its factorization.

1222121000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39423258102.

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

Adding to 1222121000201 its reverse (1020001212221), we get a palindrome (2242122212422).

The spelling of 1222121000201 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred one", and thus it is an aban number.