1022111110021 has 16 divisors (see below), whose sum is σ = 1054974312000. Its totient is φ = 989835308928.

The previous prime is 1022111109977. The next prime is 1022111110037. The reversal of 1022111110021 is 1200111112201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022111110021 - 2¹⁷ = 1022110978949 is a prime.

It is a super-2 number, since 2×1022111110021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022111109983 and 1022111110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022111110051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410025 + ... + 2008081.

It is an arithmetic number, because the mean of its divisors is an integer number (65935894500).

Almost surely, 2^{1022111110021} is an apocalyptic number.

It is an amenable number.

1022111110021 is a deficient number, since it is larger than the sum of its proper divisors (32863201979).

1022111110021 is an equidigital number, since it uses as much as digits as its factorization.

1022111110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598548.

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

Adding to 1022111110021 its reverse (1200111112201), we get a palindrome (2222222222222).

The spelling of 1022111110021 in words is "one trillion, twenty-two billion, one hundred eleven million, one hundred ten thousand, twenty-one".