211302506450 has 144 divisors (see below), whose sum is σ = 482147578080. Its totient is φ = 68505937920.

The previous prime is 211302506449. The next prime is 211302506489. The reversal of 211302506450 is 54605203112.

211302506450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26855417 + ... + 26863283.

It is an arithmetic number, because the mean of its divisors is an integer number (3348247070).

Almost surely, 2^211302506450 is an apocalyptic number.

211302506450 is an abundant number, since it is smaller than the sum of its proper divisors (270845071630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211302506450 is a wasteful number, since it uses less digits than its factorization.

211302506450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489 (or 8477 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 211302506450 its reverse (54605203112), we get a palindrome (265907709562).

The spelling of 211302506450 in words is "two hundred eleven billion, three hundred two million, five hundred six thousand, four hundred fifty".