212220101012 has 24 divisors (see below), whose sum is σ = 374819555880. Its totient is φ = 105133271040.

The previous prime is 212220101011. The next prime is 212220101033. The reversal of 212220101012 is 210101022212.

It can be written as a sum of positive squares in 4 ways, for example, as 49677277456 + 162542823556 = 222884^2 + 403166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220101011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368837 + ... + 748652.

It is an arithmetic number, because the mean of its divisors is an integer number (15617481495).

Almost surely, 2^212220101012 is an apocalyptic number.

It is an amenable number.

212220101012 is a deficient number, since it is larger than the sum of its proper divisors (162599454868).

212220101012 is a wasteful number, since it uses less digits than its factorization.

212220101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117931 (or 1117929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212220101012 its reverse (210101022212), we get a palindrome (422321123224).

The spelling of 212220101012 in words is "two hundred twelve billion, two hundred twenty million, one hundred one thousand, twelve".