211210021011 has 32 divisors (see below), whose sum is σ = 327440365056. Its totient is φ = 119678400000.

The previous prime is 211210021003. The next prime is 211210021037. The reversal of 211210021011 is 110120012112.

It is not a de Polignac number, because 211210021011 - 2³ = 211210021003 is a prime.

It is a super-2 number, since 2×211210021011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211210021511) 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, 1161940 + ... + 1331361.

It is an arithmetic number, because the mean of its divisors is an integer number (10232511408).

Almost surely, 2^211210021011 is an apocalyptic number.

211210021011 is a deficient number, since it is larger than the sum of its proper divisors (116230344045).

211210021011 is a wasteful number, since it uses less digits than its factorization.

211210021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493483.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211210021011 its reverse (110120012112), we get a palindrome (321330033123).

The spelling of 211210021011 in words is "two hundred eleven billion, two hundred ten million, twenty-one thousand, eleven".