1021101111112 has 32 divisors (see below), whose sum is σ = 1916229960000. Its totient is φ = 510106627008.

The previous prime is 1021101111077. The next prime is 1021101111139. The reversal of 1021101111112 is 2111111011201.

It is a super-2 number, since 2×1021101111112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021101111092 and 1021101111101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70956814 + ... + 70971202.

It is an arithmetic number, because the mean of its divisors is an integer number (59882186250).

Almost surely, 2^{1021101111112} is an apocalyptic number.

It is an amenable number.

1021101111112 is a deficient number, since it is larger than the sum of its proper divisors (895128848888).

1021101111112 is a wasteful number, since it uses less digits than its factorization.

1021101111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21493 (or 21489 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1021101111112 its reverse (2111111011201), we get a palindrome (3132212122313).

The spelling of 1021101111112 in words is "one trillion, twenty-one billion, one hundred one million, one hundred eleven thousand, one hundred twelve".