212001000010011 has 24 divisors (see below), whose sum is σ = 307615017705840. Its totient is φ = 140692825190400.

The previous prime is 212001000010001. The next prime is 212001000010043. The reversal of 212001000010011 is 110010000100212.

It is a happy number.

It is not a de Polignac number, because 212001000010011 - 2⁶ = 212001000009947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 212001000009975 and 212001000010002.

It is not an unprimeable number, because it can be changed into a prime (212001000010001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38555430 + ... + 43709531.

It is an arithmetic number, because the mean of its divisors is an integer number (12817292404410).

Almost surely, 2^{212001000010011} is an apocalyptic number.

212001000010011 is a deficient number, since it is larger than the sum of its proper divisors (95614017695829).

212001000010011 is a wasteful number, since it uses less digits than its factorization.

212001000010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82266267 (or 82266264 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 212001000010011 its reverse (110010000100212), we get a palindrome (322011000110223).

The spelling of 212001000010011 in words is "two hundred twelve trillion, one billion, ten thousand, eleven".