2011111010121 has 32 divisors (see below), whose sum is σ = 2744777871360. Its totient is φ = 1309330923264.

The previous prime is 2011111010063. The next prime is 2011111010123. The reversal of 2011111010121 is 1210101111102.

It is not a de Polignac number, because 2011111010121 - 2⁶ = 2011111010057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011111010097 and 2011111010106.

It is not an unprimeable number, because it can be changed into a prime (2011111010123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200364715 + ... + 200374751.

It is an arithmetic number, because the mean of its divisors is an integer number (85774308480).

Almost surely, 2^{2011111010121} is an apocalyptic number.

It is an amenable number.

2011111010121 is a deficient number, since it is larger than the sum of its proper divisors (733666861239).

2011111010121 is a wasteful number, since it uses less digits than its factorization.

2011111010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 2011111010121 its reverse (1210101111102), we get a palindrome (3221212121223).

The spelling of 2011111010121 in words is "two trillion, eleven billion, one hundred eleven million, ten thousand, one hundred twenty-one".