222220121202001 has 16 divisors (see below), whose sum is σ = 258329929858560. Its totient is φ = 189441948548160.

The previous prime is 222220121201993. The next prime is 222220121202061. The reversal of 222220121202001 is 100202121022222.

It is a cyclic number.

It is not a de Polignac number, because 222220121202001 - 2³ = 222220121201993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222220121202001.

It is not an unprimeable number, because it can be changed into a prime (222220121202061) 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, 12813975945 + ... + 12813993286.

It is an arithmetic number, because the mean of its divisors is an integer number (16145620616160).

Almost surely, 2^{222220121202001} is an apocalyptic number.

It is an amenable number.

222220121202001 is a deficient number, since it is larger than the sum of its proper divisors (36109808656559).

222220121202001 is a wasteful number, since it uses less digits than its factorization.

222220121202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25627969296.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222220121202001 its reverse (100202121022222), we get a palindrome (322422242224223).

The spelling of 222220121202001 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred two thousand, one".