210011222001 has 32 divisors (see below), whose sum is σ = 336309664768. Its totient is φ = 114047559360.

The previous prime is 210011221997. The next prime is 210011222041. The reversal of 210011222001 is 100222110012.

It is not a de Polignac number, because 210011222001 - 2² = 210011221997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210011222041) 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, 3109435 + ... + 3176256.

It is an arithmetic number, because the mean of its divisors is an integer number (10509677024).

Almost surely, 2^210011222001 is an apocalyptic number.

210011222001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210011222001 is a deficient number, since it is larger than the sum of its proper divisors (126298442767).

210011222001 is a wasteful number, since it uses less digits than its factorization.

210011222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285781.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210011222001 its reverse (100222110012), we get a palindrome (310233332013).

The spelling of 210011222001 in words is "two hundred ten billion, eleven million, two hundred twenty-two thousand, one".