212010023444 has 6 divisors (see below), whose sum is σ = 371017541034. Its totient is φ = 106005011720.

The previous prime is 212010023441. The next prime is 212010023471. The reversal of 212010023444 is 444320010212.

It can be written as a sum of positive squares in only one way, i.e., 165445562500 + 46564460944 = 406750^2 + 215788^2 .

It is a super-2 number, since 2×212010023444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010023441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26501252927 + ... + 26501252934.

It is an arithmetic number, because the mean of its divisors is an integer number (61836256839).

Almost surely, 2^212010023444 is an apocalyptic number.

It is an amenable number.

212010023444 is a deficient number, since it is larger than the sum of its proper divisors (159007517590).

212010023444 is a wasteful number, since it uses less digits than its factorization.

212010023444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53002505865 (or 53002505863 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 212010023444 its reverse (444320010212), we get a palindrome (656330033656).

The spelling of 212010023444 in words is "two hundred twelve billion, ten million, twenty-three thousand, four hundred forty-four".