211003121012 has 12 divisors (see below), whose sum is σ = 372911457156. Its totient is φ = 104456990400.

The previous prime is 211003121003. The next prime is 211003121023. The reversal of 211003121012 is 210121300112.

It can be written as a sum of positive squares in 2 ways, for example, as 106676704996 + 104326416016 = 326614^2 + 322996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261142073 + ... + 261142880.

It is an arithmetic number, because the mean of its divisors is an integer number (31075954763).

Almost surely, 2^211003121012 is an apocalyptic number.

It is an amenable number.

211003121012 is a deficient number, since it is larger than the sum of its proper divisors (161908336144).

211003121012 is a wasteful number, since it uses less digits than its factorization.

211003121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522285058 (or 522285056 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211003121012 its reverse (210121300112), we get a palindrome (421124421124).

The spelling of 211003121012 in words is "two hundred eleven billion, three million, one hundred twenty-one thousand, twelve".