2111021000012 has 12 divisors (see below), whose sum is σ = 3698980893720.
Its totient is φ = 1054169316096.
The previous prime is 2111021000009. The next prime is 2111021000029. The reversal of 2111021000012 is 2100001201112.
It is a junction number, because it is equal to n+sod(n) for n = 2111020999957 and 2111021000002.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335292437 + ... + 335298732.
It is an arithmetic number, because the mean of its divisors is an integer number (308248407810).
Almost surely, 22111021000012 is an apocalyptic number.
It is an amenable number.
2111021000012 is a deficient number, since it is larger than the sum of its proper divisors (1587959893708).
2111021000012 is a wasteful number, since it uses less digits than its factorization.
2111021000012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 670591960 (or 670591958 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 11.
Adding to 2111021000012 its reverse (2100001201112), we get a palindrome (4211022201124).
The spelling of 2111021000012 in words is "two trillion, one hundred eleven billion, twenty-one million, twelve", and thus it is an aban number.