2102111011012 has 6 divisors (see below), whose sum is σ = 3678694269278. Its totient is φ = 1051055505504.

The previous prime is 2102111010997. The next prime is 2102111011037. The reversal of 2102111011012 is 2101101112012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1388400316416 + 713710694596 = 1178304^2 + 844814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2102111010983 and 2102111011001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262763876373 + ... + 262763876380.

Almost surely, 2^{2102111011012} is an apocalyptic number.

It is an amenable number.

2102111011012 is a deficient number, since it is larger than the sum of its proper divisors (1576583258266).

2102111011012 is a wasteful number, since it uses less digits than its factorization.

2102111011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525527752757 (or 525527752755 counting only the distinct ones).

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

Adding to 2102111011012 its reverse (2101101112012), we get a palindrome (4203212123024).

The spelling of 2102111011012 in words is "two trillion, one hundred two billion, one hundred eleven million, eleven thousand, twelve".