212111123010 has 16 divisors (see below), whose sum is σ = 509066695296. Its totient is φ = 56562966128.

The previous prime is 212111123009. The next prime is 212111123047. The reversal of 212111123010 is 10321111212.

It is a super-2 number, since 2×212111123010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3535185354 + ... + 3535185413.

It is an arithmetic number, because the mean of its divisors is an integer number (31816668456).

Almost surely, 2^212111123010 is an apocalyptic number.

212111123010 is an abundant number, since it is smaller than the sum of its proper divisors (296955572286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111123010 is a wasteful number, since it uses less digits than its factorization.

212111123010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070370777.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212111123010 its reverse (10321111212), we get a palindrome (222432234222).

The spelling of 212111123010 in words is "two hundred twelve billion, one hundred eleven million, one hundred twenty-three thousand, ten".