212111010111010 has 8 divisors (see below), whose sum is σ = 381799818199836. Its totient is φ = 84844404044400.

The previous prime is 212111010110947. The next prime is 212111010111017. The reversal of 212111010111010 is 10111010111212.

It can be written as a sum of positive squares in 2 ways, for example, as 179270167850761 + 32840842260249 = 13389181^2 + 5730693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×212111010111010³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (212111010111017) 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, 10605550505541 + ... + 10605550505560.

Almost surely, 2^{212111010111010} is an apocalyptic number.

212111010111010 is a deficient number, since it is larger than the sum of its proper divisors (169688808088826).

212111010111010 is a wasteful number, since it uses less digits than its factorization.

212111010111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211101011108.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 212111010111010 its reverse (10111010111212), we get a palindrome (222222020222222).

The spelling of 212111010111010 in words is "two hundred twelve trillion, one hundred eleven billion, ten million, one hundred eleven thousand, ten".