212120021201011 has 32 divisors (see below), whose sum is σ = 265372902950400. Its totient is φ = 164718630286080.

The previous prime is 212120021200999. The next prime is 212120021201017. The reversal of 212120021201011 is 110102120021212.

It is a cyclic number.

It is not a de Polignac number, because 212120021201011 - 2²¹ = 212120019103859 is a prime.

It is a super-2 number, since 2×212120021201011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212120021201017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743671020 + ... + 743956198.

It is an arithmetic number, because the mean of its divisors is an integer number (8292903217200).

Almost surely, 2^{212120021201011} is an apocalyptic number.

212120021201011 is a deficient number, since it is larger than the sum of its proper divisors (53252881749389).

212120021201011 is a wasteful number, since it uses less digits than its factorization.

212120021201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318459.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212120021201011 its reverse (110102120021212), we get a palindrome (322222141222223).

The spelling of 212120021201011 in words is "two hundred twelve trillion, one hundred twenty billion, twenty-one million, two hundred one thousand, eleven".