212222131001 has 4 divisors (see below), whose sum is σ = 212242994292. Its totient is φ = 212201267712.

The previous prime is 212222130997. The next prime is 212222131007. The reversal of 212222131001 is 100131222212.

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 78119691001 + 134102440000 = 279499^2 + 366200^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222131001 - 2² = 212222130997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222131007) 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, 10416380 + ... + 10436733.

It is an arithmetic number, because the mean of its divisors is an integer number (53060748573).

Almost surely, 2^212222131001 is an apocalyptic number.

It is an amenable number.

212222131001 is a deficient number, since it is larger than the sum of its proper divisors (20863291).

212222131001 is a wasteful number, since it uses less digits than its factorization.

212222131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20863290.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212222131001 its reverse (100131222212), we get a palindrome (312353353213).

The spelling of 212222131001 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred thirty-one thousand, one".