212222131024 has 20 divisors (see below), whose sum is σ = 411969608820. Its totient is φ = 105907393280.

The previous prime is 212222131007. The next prime is 212222131057. The reversal of 212222131024 is 420131222212.

212222131024 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148172644624 + 64049486400 = 384932^2 + 253080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212222130986 and 212222131004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12720919 + ... + 12737590.

It is an arithmetic number, because the mean of its divisors is an integer number (20598480441).

Almost surely, 2^212222131024 is an apocalyptic number.

It is an amenable number.

212222131024 is a deficient number, since it is larger than the sum of its proper divisors (199747477796).

212222131024 is a wasteful number, since it uses less digits than its factorization.

212222131024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25459038 (or 25459032 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212222131024 its reverse (420131222212), we get a palindrome (632353353236).

The spelling of 212222131024 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred thirty-one thousand, twenty-four".