222212122210001 has 16 divisors (see below), whose sum is σ = 277044399895680. Its totient is φ = 173151856106880.

The previous prime is 222212122209989. The next prime is 222212122210063. The reversal of 222212122210001 is 100012221212222.

It is not a de Polignac number, because 222212122210001 - 2³⁸ = 221937244303057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222212122210901) 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, 28051415 + ... + 35089971.

It is an arithmetic number, because the mean of its divisors is an integer number (17315274993480).

Almost surely, 2^{222212122210001} is an apocalyptic number.

It is an amenable number.

222212122210001 is a deficient number, since it is larger than the sum of its proper divisors (54832277685679).

222212122210001 is a wasteful number, since it uses less digits than its factorization.

222212122210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448584.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222212122210001 its reverse (100012221212222), we get a palindrome (322224343422223).

The spelling of 222212122210001 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, one".