1020011111210 has 96 divisors (see below), whose sum is σ = 2312114015232. Its totient is φ = 321126180480.

The previous prime is 1020011111201. The next prime is 1020011111233. The reversal of 1020011111210 is 121111100201.

It is a junction number, because it is equal to n+sod(n) for n = 1020011111191 and 1020011111200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797489 + ... + 1635851.

It is an arithmetic number, because the mean of its divisors is an integer number (24084520992).

Almost surely, 2^{1020011111210} is an apocalyptic number.

1020011111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020011111210 is an abundant number, since it is smaller than the sum of its proper divisors (1292102904022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020011111210 is a wasteful number, since it uses less digits than its factorization.

1020011111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838588 (or 838581 counting only the distinct ones).

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

Adding to 1020011111210 its reverse (121111100201), we get a palindrome (1141122211411).

The spelling of 1020011111210 in words is "one trillion, twenty billion, eleven million, one hundred eleven thousand, two hundred ten".