211202213121011 has 16 divisors (see below), whose sum is σ = 244430155776000. Its totient is φ = 178738335535968.

The previous prime is 211202213120989. The next prime is 211202213121023. The reversal of 211202213121011 is 110121312202112.

It is a cyclic number.

It is not a de Polignac number, because 211202213121011 - 2²⁶ = 211202146012147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211202213121311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248238965 + ... + 249088313.

It is an arithmetic number, because the mean of its divisors is an integer number (15276884736000).

Almost surely, 2^{211202213121011} is an apocalyptic number.

211202213121011 is a deficient number, since it is larger than the sum of its proper divisors (33227942654989).

211202213121011 is an equidigital number, since it uses as much as digits as its factorization.

211202213121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299098.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 211202213121011 its reverse (110121312202112), we get a palindrome (321323525323123).

The spelling of 211202213121011 in words is "two hundred eleven trillion, two hundred two billion, two hundred thirteen million, one hundred twenty-one thousand, eleven".