212011221001011 has 16 divisors (see below), whose sum is σ = 295092678196224. Its totient is φ = 135140311596224.

The previous prime is 212011221001007. The next prime is 212011221001033. The reversal of 212011221001011 is 110100122110212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212011221001011 - 2² = 212011221001007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212011221001061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627666546 + ... + 628004231.

It is an arithmetic number, because the mean of its divisors is an integer number (18443292387264).

Almost surely, 2^{212011221001011} is an apocalyptic number.

212011221001011 is a deficient number, since it is larger than the sum of its proper divisors (83081457195213).

212011221001011 is a wasteful number, since it uses less digits than its factorization.

212011221001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255673250.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212011221001011 its reverse (110100122110212), we get a palindrome (322111343111223).

The spelling of 212011221001011 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-one million, one thousand, eleven".