1021011110212 has 24 divisors (see below), whose sum is σ = 1812084789312. Its totient is φ = 503273786400.

The previous prime is 1021011110179. The next prime is 1021011110261. The reversal of 1021011110212 is 2120111101201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021011110192 and 1021011110201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3451387 + ... + 3735517.

It is an arithmetic number, because the mean of its divisors is an integer number (75503532888).

Almost surely, 2^{1021011110212} is an apocalyptic number.

It is an amenable number.

1021011110212 is a deficient number, since it is larger than the sum of its proper divisors (791073679100).

1021011110212 is a wasteful number, since it uses less digits than its factorization.

1021011110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296859 (or 296857 counting only the distinct ones).

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

Adding to 1021011110212 its reverse (2120111101201), we get a palindrome (3141122211413).

The spelling of 1021011110212 in words is "one trillion, twenty-one billion, eleven million, one hundred ten thousand, two hundred twelve".