211503332154412 has 12 divisors (see below), whose sum is σ = 370131022326856. Its totient is φ = 105751611489600.

The previous prime is 211503332154349. The next prime is 211503332154427. The reversal of 211503332154412 is 214451233305112.

211503332154412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211503332154412² (a number of 29 digits) contains 22 as substring.

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, 4202973 + ... + 20992180.

Almost surely, 2^{211503332154412} is an apocalyptic number.

It is an amenable number.

211503332154412 is a deficient number, since it is larger than the sum of its proper divisors (158627690172444).

211503332154412 is a wasteful number, since it uses less digits than its factorization.

211503332154412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27293808 (or 27293806 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 211503332154412 its reverse (214451233305112), we get a palindrome (425954565459524).

The spelling of 211503332154412 in words is "two hundred eleven trillion, five hundred three billion, three hundred thirty-two million, one hundred fifty-four thousand, four hundred twelve".