212121210011110 has 32 divisors (see below), whose sum is σ = 385604416556064. Its totient is φ = 84007123200000.

The previous prime is 212121210011027. The next prime is 212121210011213. The reversal of 212121210011110 is 11110012121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66320710 + ... + 69445510.

It is an arithmetic number, because the mean of its divisors is an integer number (12050138017377).

Almost surely, 2^{212121210011110} is an apocalyptic number.

212121210011110 is a deficient number, since it is larger than the sum of its proper divisors (173483206544954).

212121210011110 is a wasteful number, since it uses less digits than its factorization.

212121210011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192120.

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

Adding to 212121210011110 its reverse (11110012121212), we get a palindrome (223231222132322).

The spelling of 212121210011110 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, one hundred ten".