1021110101210 has 32 divisors (see below), whose sum is σ = 1839852748800. Its totient is φ = 408032069760.

The previous prime is 1021110101197. The next prime is 1021110101251. The reversal of 1021110101210 is 121010111201.

It is a super-4 number, since 4×1021110101210⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021110101191 and 1021110101200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96699911 + ... + 96710469.

It is an arithmetic number, because the mean of its divisors is an integer number (57495398400).

Almost surely, 2^{1021110101210} is an apocalyptic number.

1021110101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021110101210 is a deficient number, since it is larger than the sum of its proper divisors (818742647590).

1021110101210 is a wasteful number, since it uses less digits than its factorization.

1021110101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19406.

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

Adding to 1021110101210 its reverse (121010111201), we get a palindrome (1142120212411).

Subtracting from 1021110101210 its reverse (121010111201), we obtain a palindrome (900099990009).

The spelling of 1021110101210 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred one thousand, two hundred ten".