1012100212111 has 8 divisors (see below), whose sum is σ = 1013247628848. Its totient is φ = 1010953200000.

The previous prime is 1012100212073. The next prime is 1012100212129. The reversal of 1012100212111 is 1112120012101.

It is a happy number.

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 1012100212111 - 2³³ = 1003510277519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012100212091 and 1012100212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012100212811) 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, 5052361 + ... + 5248861.

It is an arithmetic number, because the mean of its divisors is an integer number (126655953606).

Almost surely, 2^{1012100212111} is an apocalyptic number.

1012100212111 is a deficient number, since it is larger than the sum of its proper divisors (1147416737).

1012100212111 is a wasteful number, since it uses less digits than its factorization.

1012100212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202313.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1012100212111 its reverse (1112120012101), we get a palindrome (2124220224212).

The spelling of 1012100212111 in words is "one trillion, twelve billion, one hundred million, two hundred twelve thousand, one hundred eleven".