212260022266 has 16 divisors (see below), whose sum is σ = 321041350656. Its totient is φ = 105246990576.

The previous prime is 212260022231. The next prime is 212260022267. The reversal of 212260022266 is 662220062212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212260022267) 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, 381415 + ... + 754981.

It is an arithmetic number, because the mean of its divisors is an integer number (20065084416).

Almost surely, 2^212260022266 is an apocalyptic number.

212260022266 is a deficient number, since it is larger than the sum of its proper divisors (108781328390).

212260022266 is a wasteful number, since it uses less digits than its factorization.

212260022266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375933.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 212260022266 its reverse (662220062212), we get a palindrome (874480084478).

The spelling of 212260022266 in words is "two hundred twelve billion, two hundred sixty million, twenty-two thousand, two hundred sixty-six".