211121212011110 has 16 divisors (see below), whose sum is σ = 380041931560032. Its totient is φ = 84443207040000.

The previous prime is 211121212011071. The next prime is 211121212011119. The reversal of 211121212011110 is 11110212121112.

It is a super-2 number, since 2×211121212011110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121212011119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659552546 + ... + 659872565.

It is an arithmetic number, because the mean of its divisors is an integer number (23752620722502).

Almost surely, 2^{211121212011110} is an apocalyptic number.

211121212011110 is a deficient number, since it is larger than the sum of its proper divisors (168920719548922).

211121212011110 is a wasteful number, since it uses less digits than its factorization.

211121212011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319441119.

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

Adding to 211121212011110 its reverse (11110212121112), we get a palindrome (222231424132222).

The spelling of 211121212011110 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twelve million, eleven thousand, one hundred ten".