211122122222011 has 32 divisors (see below), whose sum is σ = 283466111781888. Its totient is φ = 151855298259840.

The previous prime is 211122122222003. The next prime is 211122122222021. The reversal of 211122122222011 is 110222221221112.

It is not a de Polignac number, because 211122122222011 - 2³ = 211122122222003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211122122222021) 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, 258287386 + ... + 259103488.

It is an arithmetic number, because the mean of its divisors is an integer number (8858315993184).

Almost surely, 2^{211122122222011} is an apocalyptic number.

211122122222011 is a deficient number, since it is larger than the sum of its proper divisors (72343989559877).

211122122222011 is a wasteful number, since it uses less digits than its factorization.

211122122222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074571.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211122122222011 its reverse (110222221221112), we get a palindrome (321344343443123).

The spelling of 211122122222011 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, eleven".