212003111011 has 4 divisors (see below), whose sum is σ = 212011627312. Its totient is φ = 211994594712.

The previous prime is 212003110999. The next prime is 212003111039. The reversal of 212003111011 is 110111300212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212003111011 - 2¹¹ = 212003108963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212003110982 and 212003111000.

It is not an unprimeable number, because it can be changed into a prime (212003111311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220700 + ... + 4270633.

It is an arithmetic number, because the mean of its divisors is an integer number (53002906828).

Almost surely, 2^212003111011 is an apocalyptic number.

212003111011 is a deficient number, since it is larger than the sum of its proper divisors (8516301).

212003111011 is an equidigital number, since it uses as much as digits as its factorization.

212003111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516300.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 212003111011 its reverse (110111300212), we get a palindrome (322114411223).

The spelling of 212003111011 in words is "two hundred twelve billion, three million, one hundred eleven thousand, eleven".