10001123122211 has 64 divisors (see below), whose sum is σ = 11775139084800. Its totient is φ = 8410629427200.

The previous prime is 10001123122183. The next prime is 10001123122223. The reversal of 10001123122211 is 11222132110001.

It is a happy number.

It is not a de Polignac number, because 10001123122211 - 2⁶ = 10001123122147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10001123122211.

It is not an unprimeable number, because it can be changed into a prime (10001123122271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4805920691 + ... + 4805922771.

It is an arithmetic number, because the mean of its divisors is an integer number (183986548200).

Almost surely, 2^{10001123122211} is an apocalyptic number.

10001123122211 is a deficient number, since it is larger than the sum of its proper divisors (1774015962589).

10001123122211 is a wasteful number, since it uses less digits than its factorization.

10001123122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10001123122211 its reverse (11222132110001), we get a palindrome (21223255232212).

The spelling of 10001123122211 in words is "ten trillion, one billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred eleven".