211283006404 has 6 divisors (see below), whose sum is σ = 369745261214. Its totient is φ = 105641503200.

The previous prime is 211283006399. The next prime is 211283006471. The reversal of 211283006404 is 404600382112.

It can be written as a sum of positive squares in only one way, i.e., 207345443904 + 3937562500 = 455352^2 + 62750^2 .

It is a super-2 number, since 2×211283006404² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26410375797 + ... + 26410375804.

Almost surely, 2^211283006404 is an apocalyptic number.

It is an amenable number.

211283006404 is a deficient number, since it is larger than the sum of its proper divisors (158462254810).

211283006404 is a wasteful number, since it uses less digits than its factorization.

211283006404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52820751605 (or 52820751603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 211283006404 its reverse (404600382112), we get a palindrome (615883388516).

The spelling of 211283006404 in words is "two hundred eleven billion, two hundred eighty-three million, six thousand, four hundred four".