210111121101 has 8 divisors (see below), whose sum is σ = 320169327424. Its totient is φ = 120063497760.

The previous prime is 210111121097. The next prime is 210111121109. The reversal of 210111121101 is 101121111012.

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

It is not a de Polignac number, because 210111121101 - 2² = 210111121097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111121109) 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, 5002645720 + ... + 5002645761.

It is an arithmetic number, because the mean of its divisors is an integer number (40021165928).

Almost surely, 2^210111121101 is an apocalyptic number.

210111121101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210111121101 is a deficient number, since it is larger than the sum of its proper divisors (110058206323).

210111121101 is a wasteful number, since it uses less digits than its factorization.

210111121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005291491.

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

Adding to 210111121101 its reverse (101121111012), we get a palindrome (311232232113).

It can be divided in two parts, 2101111 and 21101, that added together give a palindrome (2122212).

The spelling of 210111121101 in words is "two hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, one hundred one".