212121123313011 has 32 divisors (see below), whose sum is σ = 313393176672000. Its totient is φ = 126543081254400.

The previous prime is 212121123312997. The next prime is 212121123313019. The reversal of 212121123313011 is 110313321121212.

It is not a de Polignac number, because 212121123313011 - 2⁶ = 212121123312947 is a prime.

It is a super-2 number, since 2×212121123313011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212121123313019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87027970 + ... + 89432151.

It is an arithmetic number, because the mean of its divisors is an integer number (9793536771000).

Almost surely, 2^{212121123313011} is an apocalyptic number.

212121123313011 is a deficient number, since it is larger than the sum of its proper divisors (101272053358989).

212121123313011 is a wasteful number, since it uses less digits than its factorization.

212121123313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176460707.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 212121123313011 its reverse (110313321121212), we get a palindrome (322434444434223).

The spelling of 212121123313011 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred thirteen thousand, eleven".