2111021021012 has 12 divisors (see below), whose sum is σ = 3697594123860. Its totient is φ = 1054565557056.

The previous prime is 2111021021003. The next prime is 2111021021017. The reversal of 2111021021012 is 2101201201112.

It can be written as a sum of positive squares in 2 ways, for example, as 665144638096 + 1445876382916 = 815564^2 + 1202446^2 .

It is a super-3 number, since 3×2111021021012³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236233337 + ... + 236242272.

It is an arithmetic number, because the mean of its divisors is an integer number (308132843655).

Almost surely, 2^{2111021021012} is an apocalyptic number.

It is an amenable number.

2111021021012 is a deficient number, since it is larger than the sum of its proper divisors (1586573102848).

2111021021012 is a wasteful number, since it uses less digits than its factorization.

2111021021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472476730 (or 472476728 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111021021012 its reverse (2101201201112), we get a palindrome (4212222222124).

The spelling of 2111021021012 in words is "two trillion, one hundred eleven billion, twenty-one million, twenty-one thousand, twelve".