1022211112021 has 16 divisors (see below), whose sum is σ = 1180804868928. Its totient is φ = 874567993600.

The previous prime is 1022211112019. The next prime is 1022211112067. The reversal of 1022211112021 is 1202111122201.

It is a cyclic number.

It is not a de Polignac number, because 1022211112021 - 2¹ = 1022211112019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022211111986 and 1022211112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022211112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3239751 + ... + 3541243.

It is an arithmetic number, because the mean of its divisors is an integer number (73800304308).

Almost surely, 2^{1022211112021} is an apocalyptic number.

1022211112021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022211112021 is a deficient number, since it is larger than the sum of its proper divisors (158593756907).

1022211112021 is a wasteful number, since it uses less digits than its factorization.

1022211112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319652.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022211112021 its reverse (1202111122201), we get a palindrome (2224322234222).

The spelling of 1022211112021 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twelve thousand, twenty-one".