2111210112121 has 8 divisors (see below), whose sum is σ = 2306622636288. Its totient is φ = 1916378310000.

The previous prime is 2111210112107. The next prime is 2111210112131. The reversal of 2111210112121 is 1212110121112.

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

It is not a de Polignac number, because 2111210112121 - 2²¹ = 2111208014969 is a prime.

It is a super-2 number, since 2×2111210112121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111210112095 and 2111210112104.

It is not an unprimeable number, because it can be changed into a prime (2111210112131) 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, 145172905 + ... + 145187446.

It is an arithmetic number, because the mean of its divisors is an integer number (288327829536).

Almost surely, 2^{2111210112121} is an apocalyptic number.

It is an amenable number.

2111210112121 is a deficient number, since it is larger than the sum of its proper divisors (195412524167).

2111210112121 is a wasteful number, since it uses less digits than its factorization.

2111210112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290361023.

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

Adding to 2111210112121 its reverse (1212110121112), we get a palindrome (3323320233233).

The spelling of 2111210112121 in words is "two trillion, one hundred eleven billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-one".