2111101122121 has 8 divisors (see below), whose sum is σ = 2114153164544. Its totient is φ = 2108050019280.

The previous prime is 2111101122073. The next prime is 2111101122139. The reversal of 2111101122121 is 1212211011112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111101122121 - 2⁹ = 2111101121609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111101122095 and 2111101122104.

It is not an unprimeable number, because it can be changed into a prime (2111101122421) 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, 4325911 + ... + 4789123.

It is an arithmetic number, because the mean of its divisors is an integer number (264269145568).

Almost surely, 2^{2111101122121} is an apocalyptic number.

It is an amenable number.

2111101122121 is a deficient number, since it is larger than the sum of its proper divisors (3052042423).

2111101122121 is an equidigital number, since it uses as much as digits as its factorization.

2111101122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469791.

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

Adding to 2111101122121 its reverse (1212211011112), we get a palindrome (3323312133233).

The spelling of 2111101122121 in words is "two trillion, one hundred eleven billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-one".