222120220000001 has 4 divisors (see below), whose sum is σ = 222121550777904. Its totient is φ = 222118889222100.

The previous prime is 222120219999971. The next prime is 222120220000037. The reversal of 222120220000001 is 100000022021222.

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 222120220000001 - 2³⁴ = 222103040130817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120220000051) 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, 665138555 + ... + 665472416.

It is an arithmetic number, because the mean of its divisors is an integer number (55530387694476).

Almost surely, 2^{222120220000001} is an apocalyptic number.

It is an amenable number.

222120220000001 is a deficient number, since it is larger than the sum of its proper divisors (1330777903).

222120220000001 is a wasteful number, since it uses less digits than its factorization.

222120220000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330777902.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222120220000001 its reverse (100000022021222), we get a palindrome (322120242021223).

The spelling of 222120220000001 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty million, one", and thus it is an aban number.