2111211102121 has 8 divisors (see below), whose sum is σ = 2342175645600. Its totient is φ = 1886752602240.

The previous prime is 2111211102107. The next prime is 2111211102197. The reversal of 2111211102121 is 1212011121112.

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

It is not a de Polignac number, because 2111211102121 - 2⁹ = 2111211101609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111211102095 and 2111211102104.

It is not an unprimeable number, because it can be changed into a prime (2111211102421) 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, 1626510216 + ... + 1626511513.

It is an arithmetic number, because the mean of its divisors is an integer number (292771955700).

Almost surely, 2^{2111211102121} is an apocalyptic number.

It is an amenable number.

2111211102121 is a deficient number, since it is larger than the sum of its proper divisors (230964543479).

2111211102121 is a wasteful number, since it uses less digits than its factorization.

2111211102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253021799.

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

Adding to 2111211102121 its reverse (1212011121112), we get a palindrome (3323222223233).

The spelling of 2111211102121 in words is "two trillion, one hundred eleven billion, two hundred eleven million, one hundred two thousand, one hundred twenty-one".