211213040220244 has 12 divisors (see below), whose sum is σ = 372444368633568. Its totient is φ = 104800363467800.

The previous prime is 211213040220157. The next prime is 211213040220269. The reversal of 211213040220244 is 442022040312112.

It is a super-2 number, since 2×211213040220244² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201539159992 + ... + 201539161039.

It is an arithmetic number, because the mean of its divisors is an integer number (31037030719464).

Almost surely, 2^{211213040220244} is an apocalyptic number.

It is an amenable number.

211213040220244 is a deficient number, since it is larger than the sum of its proper divisors (161231328413324).

211213040220244 is a wasteful number, since it uses less digits than its factorization.

211213040220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403078321166 (or 403078321164 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 211213040220244 its reverse (442022040312112), we get a palindrome (653235080532356).

The spelling of 211213040220244 in words is "two hundred eleven trillion, two hundred thirteen billion, forty million, two hundred twenty thousand, two hundred forty-four".