211222020121011 has 24 divisors (see below), whose sum is σ = 308126865533760. Its totient is φ = 139417029600000.

The previous prime is 211222020120973. The next prime is 211222020121039. The reversal of 211222020121011 is 110121020222112.

211222020121011 is a `hidden beast` number, since 21 + 1 + 2 + 220 + 201 + 210 + 11 = 666.

211222020121011 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211222020121011 - 2¹³ = 211222020112819 is a prime.

It is a super-2 number, since 2×211222020121011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222020121811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34191595 + ... + 39893723.

It is an arithmetic number, because the mean of its divisors is an integer number (12838619397240).

Almost surely, 2^{211222020121011} is an apocalyptic number.

211222020121011 is a deficient number, since it is larger than the sum of its proper divisors (96904845412749).

211222020121011 is a wasteful number, since it uses less digits than its factorization.

211222020121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742987 (or 5742984 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211222020121011 its reverse (110121020222112), we get a palindrome (321343040343123).

The spelling of 211222020121011 in words is "two hundred eleven trillion, two hundred twenty-two billion, twenty million, one hundred twenty-one thousand, eleven".