10211111012 has 6 divisors (see below), whose sum is σ = 17869444278. Its totient is φ = 5105555504.

The previous prime is 10211111011. The next prime is 10211111041. The reversal of 10211111012 is 21011111201.

It can be written as a sum of positive squares in only one way, i.e., 10205848576 + 5262436 = 101024^2 + 2294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10211110984 and 10211111002.

It is not an unprimeable number, because it can be changed into a prime (10211111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276388873 + ... + 1276388880.

It is an arithmetic number, because the mean of its divisors is an integer number (2978240713).

Almost surely, 2^10211111012 is an apocalyptic number.

It is an amenable number.

10211111012 is a deficient number, since it is larger than the sum of its proper divisors (7658333266).

10211111012 is a wasteful number, since it uses less digits than its factorization.

10211111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552777757 (or 2552777755 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10211111012 its reverse (21011111201), we get a palindrome (31222222213).

The spelling of 10211111012 in words is "ten billion, two hundred eleven million, one hundred eleven thousand, twelve".