101021111012 has 6 divisors (see below), whose sum is σ = 176786944278. Its totient is φ = 50510555504.

The previous prime is 101021110997. The next prime is 101021111053. The reversal of 101021111012 is 210111120101.

It can be written as a sum of positive squares in only one way, i.e., 100600614976 + 420496036 = 317176^2 + 20506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101021110984 and 101021111002.

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, 12627638873 + ... + 12627638880.

It is an arithmetic number, because the mean of its divisors is an integer number (29464490713).

Almost surely, 2^101021111012 is an apocalyptic number.

It is an amenable number.

101021111012 is a deficient number, since it is larger than the sum of its proper divisors (75765833266).

101021111012 is a wasteful number, since it uses less digits than its factorization.

101021111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255277757 (or 25255277755 counting only the distinct ones).

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

Adding to 101021111012 its reverse (210111120101), we get a palindrome (311132231113).

The spelling of 101021111012 in words is "one hundred one billion, twenty-one million, one hundred eleven thousand, twelve".