211201011221011 has 8 divisors (see below), whose sum is σ = 244084635761760. Its totient is φ = 178995399557568.

The previous prime is 211201011220973. The next prime is 211201011221029. The reversal of 211201011221011 is 110122110102112.

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 211201011221011 - 2³⁹ = 210651255407123 is a prime.

It is a super-2 number, since 2×211201011221011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211201011221041) 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, 169503218656 + ... + 169503219901.

It is an arithmetic number, because the mean of its divisors is an integer number (30510579470220).

Almost surely, 2^{211201011221011} is an apocalyptic number.

211201011221011 is a deficient number, since it is larger than the sum of its proper divisors (32883624540749).

211201011221011 is an equidigital number, since it uses as much as digits as its factorization.

211201011221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339006438653.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 211201011221011 its reverse (110122110102112), we get a palindrome (321323121323123).

The spelling of 211201011221011 in words is "two hundred eleven trillion, two hundred one billion, eleven million, two hundred twenty-one thousand, eleven".