2111021011121 has 8 divisors (see below), whose sum is σ = 2303108059584. Its totient is φ = 1918963303920.

The previous prime is 2111021011109. The next prime is 2111021011123. The reversal of 2111021011121 is 1211101201112.

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 2111021011121 - 2²⁶ = 2110953902257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111021011096 and 2111021011105.

It is not an unprimeable number, because it can be changed into a prime (2111021011123) 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, 7184741 + ... + 7472786.

It is an arithmetic number, because the mean of its divisors is an integer number (287888507448).

Almost surely, 2^{2111021011121} is an apocalyptic number.

It is an amenable number.

2111021011121 is a deficient number, since it is larger than the sum of its proper divisors (192087048463).

2111021011121 is a wasteful number, since it uses less digits than its factorization.

2111021011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14670631.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2111021011121 its reverse (1211101201112), we get a palindrome (3322122212233).

The spelling of 2111021011121 in words is "two trillion, one hundred eleven billion, twenty-one million, eleven thousand, one hundred twenty-one".