1021101211112 has 8 divisors (see below), whose sum is σ = 1914564770850. Its totient is φ = 510550605552.

The previous prime is 1021101211069. The next prime is 1021101211199. The reversal of 1021101211112 is 2111121011201.

It can be written as a sum of positive squares in only one way, i.e., 794569000996 + 226532210116 = 891386^2 + 475954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63818825687 + ... + 63818825702.

Almost surely, 2^{1021101211112} is an apocalyptic number.

It is an amenable number.

1021101211112 is a deficient number, since it is larger than the sum of its proper divisors (893463559738).

1021101211112 is a wasteful number, since it uses less digits than its factorization.

1021101211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127637651395 (or 127637651391 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1021101211112 its reverse (2111121011201), we get a palindrome (3132222222313).

The spelling of 1021101211112 in words is "one trillion, twenty-one billion, one hundred one million, two hundred eleven thousand, one hundred twelve".