212012201011 has 4 divisors (see below), whose sum is σ = 228320831872. Its totient is φ = 195703570152.

The previous prime is 212012200991. The next prime is 212012201047. The reversal of 212012201011 is 110102210212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012201011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 16308630847 = 212012201011 / (2 + 1 + 2 + 0 + 1 + 2 + 2 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212012200982 and 212012201000.

It is not an unprimeable number, because it can be changed into a prime (212012201111) 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, 8154315411 + ... + 8154315436.

It is an arithmetic number, because the mean of its divisors is an integer number (57080207968).

Almost surely, 2^212012201011 is an apocalyptic number.

212012201011 is a deficient number, since it is larger than the sum of its proper divisors (16308630861).

212012201011 is a wasteful number, since it uses less digits than its factorization.

212012201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16308630860.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212012201011 its reverse (110102210212), we get a palindrome (322114411223).

The spelling of 212012201011 in words is "two hundred twelve billion, twelve million, two hundred one thousand, eleven".