212222142544001 has 4 divisors (see below), whose sum is σ = 212406203379972. Its totient is φ = 212038081708032.

The previous prime is 212222142543989. The next prime is 212222142544033. The reversal of 212222142544001 is 100445241222212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89610835690000 + 122611306854001 = 9466300^2 + 11072999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222142544001 is a prime.

It is a super-3 number, since 3×212222142544001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222142544901) 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, 92030416256 + ... + 92030418561.

It is an arithmetic number, because the mean of its divisors is an integer number (53101550844993).

Almost surely, 2^{212222142544001} is an apocalyptic number.

It is an amenable number.

212222142544001 is a deficient number, since it is larger than the sum of its proper divisors (184060835971).

212222142544001 is a wasteful number, since it uses less digits than its factorization.

212222142544001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184060835970.

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 212222142544001 its reverse (100445241222212), we get a palindrome (312667383766213).

The spelling of 212222142544001 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred forty-two million, five hundred forty-four thousand, one".