1100021211021 has 16 divisors (see below), whose sum is σ = 1474811712000. Its totient is φ = 729292825008.

The previous prime is 1100021211007. The next prime is 1100021211073. The reversal of 1100021211021 is 1201121200011.

It is not a de Polignac number, because 1100021211021 - 2⁵ = 1100021210989 is a prime.

It is a super-2 number, since 2×1100021211021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1100021210988 and 1100021211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715930 + ... + 1646996.

It is an arithmetic number, because the mean of its divisors is an integer number (92175732000).

Almost surely, 2^{1100021211021} is an apocalyptic number.

It is an amenable number.

1100021211021 is a deficient number, since it is larger than the sum of its proper divisors (374790500979).

1100021211021 is a wasteful number, since it uses less digits than its factorization.

1100021211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933248.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1100021211021 its reverse (1201121200011), we get a palindrome (2301142411032).

The spelling of 1100021211021 in words is "one trillion, one hundred billion, twenty-one million, two hundred eleven thousand, twenty-one".