2111012111121 has 8 divisors (see below), whose sum is σ = 2816245666464. Its totient is φ = 1406559981600.

The previous prime is 2111012111107. The next prime is 2111012111149. The reversal of 2111012111121 is 1211112101112.

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

It is not a de Polignac number, because 2111012111121 - 2¹⁵ = 2111012078353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111012111121.

It is not an unprimeable number, because it can be changed into a prime (2111012111101) 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, 195350151 + ... + 195360956.

It is an arithmetic number, because the mean of its divisors is an integer number (352030708308).

Almost surely, 2^{2111012111121} is an apocalyptic number.

It is an amenable number.

2111012111121 is a deficient number, since it is larger than the sum of its proper divisors (705233555343).

2111012111121 is a wasteful number, since it uses less digits than its factorization.

2111012111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390712911.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2111012111121 its reverse (1211112101112), we get a palindrome (3322124212233).

The spelling of 2111012111121 in words is "two trillion, one hundred eleven billion, twelve million, one hundred eleven thousand, one hundred twenty-one".