210021210112011 has 8 divisors (see below), whose sum is σ = 280505330032704. Its totient is φ = 139775615133000.

The previous prime is 210021210112003. The next prime is 210021210112117. The reversal of 210021210112011 is 110211012120012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210021210112011 - 2³ = 210021210112003 is a prime.

It is a super-3 number, since 3×210021210112011³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (210021210112211) 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, 59631233365 + ... + 59631236886.

It is an arithmetic number, because the mean of its divisors is an integer number (35063166254088).

Almost surely, 2^{210021210112011} is an apocalyptic number.

210021210112011 is a deficient number, since it is larger than the sum of its proper divisors (70484119920693).

210021210112011 is a wasteful number, since it uses less digits than its factorization.

210021210112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119262470841.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210021210112011 its reverse (110211012120012), we get a palindrome (320232222232023).

The spelling of 210021210112011 in words is "two hundred ten trillion, twenty-one billion, two hundred ten million, one hundred twelve thousand, eleven".