1020021012110 has 16 divisors (see below), whose sum is σ = 1840419781200. Its totient is φ = 407034636096.

The previous prime is 1020021012107. The next prime is 1020021012181. The reversal of 1020021012110 is 112101200201.

It is a junction number, because it is equal to n+sod(n) for n = 1020021012091 and 1020021012100.

It is a congruent number.

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, 121716695 + ... + 121725074.

It is an arithmetic number, because the mean of its divisors is an integer number (115026236325).

Almost surely, 2^{1020021012110} is an apocalyptic number.

1020021012110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020021012110 is a deficient number, since it is larger than the sum of its proper divisors (820398769090).

1020021012110 is a wasteful number, since it uses less digits than its factorization.

1020021012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243442195.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020021012110 its reverse (112101200201), we get a palindrome (1132122212311).

The spelling of 1020021012110 in words is "one trillion, twenty billion, twenty-one million, twelve thousand, one hundred ten".