212212111111010 has 16 divisors (see below), whose sum is σ = 381982120725816. Its totient is φ = 84884773171968.

The previous prime is 212212111111003. The next prime is 212212111111067. The reversal of 212212111111010 is 10111111212212.

It can be written as a sum of positive squares in 4 ways, for example, as 67860080224729 + 144352030886281 = 8237723^2 + 12014659^2 .

It is a super-3 number, since 3×212212111111010³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212212111111010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567034 + ... + 21101706.

Almost surely, 2^{212212111111010} is an apocalyptic number.

212212111111010 is a deficient number, since it is larger than the sum of its proper divisors (169770009614806).

212212111111010 is a wasteful number, since it uses less digits than its factorization.

212212111111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17818117.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 212212111111010 its reverse (10111111212212), we get a palindrome (222323222323222).

The spelling of 212212111111010 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred eleven million, one hundred eleven thousand, ten".