212101010021011 has 8 divisors (see below), whose sum is σ = 219420187764480. Its totient is φ = 204782188931712.

The previous prime is 212101010020997. The next prime is 212101010021051. The reversal of 212101010021011 is 110120010101212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212101010021011 - 2¹⁹ = 212101009496723 is a prime.

It is a super-2 number, since 2×212101010021011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212101010020982 and 212101010021000.

It is not an unprimeable number, because it can be changed into a prime (212101010021051) 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, 87953350 + ... + 90332683.

It is an arithmetic number, because the mean of its divisors is an integer number (27427523470560).

Almost surely, 2^{212101010021011} is an apocalyptic number.

212101010021011 is a deficient number, since it is larger than the sum of its proper divisors (7319177743469).

212101010021011 is a wasteful number, since it uses less digits than its factorization.

212101010021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178327085.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212101010021011 its reverse (110120010101212), we get a palindrome (322221020122223).

The spelling of 212101010021011 in words is "two hundred twelve trillion, one hundred one billion, ten million, twenty-one thousand, eleven".