212212222202001 has 8 divisors (see below), whose sum is σ = 323371005260224. Its totient is φ = 121264126972560.

The previous prime is 212212222201933. The next prime is 212212222202009. The reversal of 212212222202001 is 100202222212212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212212222202001 - 2⁷ = 212212222201873 is a prime.

It is a super-2 number, since 2×212212222202001² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10105343914381 = 212212222202001 / (2 + 1 + 2 + 2 + 1 + 2 + 2 + 2 + 2 + 2 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212212222202009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5052671957170 + ... + 5052671957211.

It is an arithmetic number, because the mean of its divisors is an integer number (40421375657528).

Almost surely, 2^{212212222202001} is an apocalyptic number.

212212222202001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212212222202001 is a deficient number, since it is larger than the sum of its proper divisors (111158783058223).

212212222202001 is a wasteful number, since it uses less digits than its factorization.

212212222202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105343914391.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212212222202001 its reverse (100202222212212), we get a palindrome (312414444414213).

The spelling of 212212222202001 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred twenty-two million, two hundred two thousand, one".