211001112011001 has 48 divisors (see below), whose sum is σ = 313256924551872. Its totient is φ = 125571425616000.

The previous prime is 211001112010999. The next prime is 211001112011059. The reversal of 211001112011001 is 100110211100112.

It is not a de Polignac number, because 211001112011001 - 2¹ = 211001112010999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211001112091001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7202235 + ... + 21768656.

It is an arithmetic number, because the mean of its divisors is an integer number (6526185928164).

Almost surely, 2^{211001112011001} is an apocalyptic number.

It is an amenable number.

211001112011001 is a deficient number, since it is larger than the sum of its proper divisors (102255812540871).

211001112011001 is a wasteful number, since it uses less digits than its factorization.

211001112011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28971094 (or 28971051 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 211001112011001 its reverse (100110211100112), we get a palindrome (311111323111113).

The spelling of 211001112011001 in words is "two hundred eleven trillion, one billion, one hundred twelve million, eleven thousand, one".