211122221201011 has 8 divisors (see below), whose sum is σ = 216157292147520. Its totient is φ = 206109779787648.

The previous prime is 211122221200993. The next prime is 211122221201041. The reversal of 211122221201011 is 110102122221112.

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 a de Polignac number, because none of the positive numbers 2^k-211122221201011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211122221201011.

It is not an unprimeable number, because it can be changed into a prime (211122221201041) 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, 5657364406 + ... + 5657401723.

It is an arithmetic number, because the mean of its divisors is an integer number (27019661518440).

Almost surely, 2^{211122221201011} is an apocalyptic number.

211122221201011 is a deficient number, since it is larger than the sum of its proper divisors (5035070946509).

211122221201011 is a wasteful number, since it uses less digits than its factorization.

211122221201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314766573.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211122221201011 its reverse (110102122221112), we get a palindrome (321224343422123).

The spelling of 211122221201011 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, eleven".