1021110221011 has 8 divisors (see below), whose sum is σ = 1030557440000. Its totient is φ = 1011664442880.

The previous prime is 1021110221003. The next prime is 1021110221069. The reversal of 1021110221011 is 1101220111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021110221011 - 2³ = 1021110221003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021110220982 and 1021110221000.

It is not an unprimeable number, because it can be changed into a prime (1021110221071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090606 + ... + 1797676.

It is an arithmetic number, because the mean of its divisors is an integer number (128819680000).

Almost surely, 2^{1021110221011} is an apocalyptic number.

1021110221011 is a deficient number, since it is larger than the sum of its proper divisors (9447218989).

1021110221011 is a wasteful number, since it uses less digits than its factorization.

1021110221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720429.

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

Adding to 1021110221011 its reverse (1101220111201), we get a palindrome (2122330332212).

The spelling of 1021110221011 in words is "one trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, eleven".