1122101021 has 2 divisors, whose sum is σ = 1122101022. Its totient is φ = 1122101020.

The previous prime is 1122101003. The next prime is 1122101027. The reversal of 1122101021 is 1201012211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 874384900 + 247716121 = 29570^2 + 15739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122101021 - 2¹⁸ = 1121838877 is a prime.

It is a super-2 number, since 2×1122101021² = 2518221402658484882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122100993 and 1122101011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122101027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561050510 + 561050511.

It is an arithmetic number, because the mean of its divisors is an integer number (561050511).

Almost surely, 2^1122101021 is an apocalyptic number.

It is an amenable number.

1122101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122101021 is an equidigital number, since it uses as much as digits as its factorization.

1122101021 is an evil number, because the sum of its binary digits is even.

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

The square root of 1122101021 is about 33497.7763590361. The cubic root of 1122101021 is about 1039.1477920651.

Adding to 1122101021 its reverse (1201012211), we get a palindrome (2323113232).

The spelling of 1122101021 in words is "one billion, one hundred twenty-two million, one hundred one thousand, twenty-one".