211206130254 has 48 divisors (see below), whose sum is σ = 523182371712. Its totient is φ = 60322020624.

The previous prime is 211206130237. The next prime is 211206130277. The reversal of 211206130254 is 452031602112.

211206130254 is a `hidden beast` number, since 2 + 1 + 1 + 20 + 613 + 0 + 25 + 4 = 666.

It is a super-2 number, since 2×211206130254² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25677 + ... + 650439.

It is an arithmetic number, because the mean of its divisors is an integer number (10899632744).

Almost surely, 2^211206130254 is an apocalyptic number.

211206130254 is an abundant number, since it is smaller than the sum of its proper divisors (311976241458).

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

211206130254 is a wasteful number, since it uses less digits than its factorization.

211206130254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627461 (or 627458 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 211206130254 its reverse (452031602112), we get a palindrome (663237732366).

The spelling of 211206130254 in words is "two hundred eleven billion, two hundred six million, one hundred thirty thousand, two hundred fifty-four".