212122102011 has 16 divisors (see below), whose sum is σ = 288868032000. Its totient is φ = 138395889248.

The previous prime is 212122101991. The next prime is 212122102013. The reversal of 212122102011 is 110201221212.

It is a cyclic number.

It is not a de Polignac number, because 212122102011 - 2⁵ = 212122101979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212122102013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241940 + ... + 2334638.

It is an arithmetic number, because the mean of its divisors is an integer number (18054252000).

Almost surely, 2^212122102011 is an apocalyptic number.

212122102011 is a deficient number, since it is larger than the sum of its proper divisors (76745929989).

212122102011 is a wasteful number, since it uses less digits than its factorization.

212122102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108978.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212122102011 its reverse (110201221212), we get a palindrome (322323323223).

The spelling of 212122102011 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred two thousand, eleven".