211011111020001 has 8 divisors (see below), whose sum is σ = 281348232766144. Its totient is φ = 140674031643600.

The previous prime is 211011111019979. The next prime is 211011111020057. The reversal of 211011111020001 is 100020111110112.

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

It is not a de Polignac number, because 211011111020001 - 2⁶ = 211011111019937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211011111020701) 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, 3835620 + ... + 20898186.

It is an arithmetic number, because the mean of its divisors is an integer number (35168529095768).

Almost surely, 2^{211011111020001} is an apocalyptic number.

It is an amenable number.

211011111020001 is a deficient number, since it is larger than the sum of its proper divisors (70337121746143).

211011111020001 is a wasteful number, since it uses less digits than its factorization.

211011111020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21184871.

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

Adding to 211011111020001 its reverse (100020111110112), we get a palindrome (311031222130113).

The spelling of 211011111020001 in words is "two hundred eleven trillion, eleven billion, one hundred eleven million, twenty thousand, one".