1122120101021 has 8 divisors (see below), whose sum is σ = 1124341932600. Its totient is φ = 1119900451840.

The previous prime is 1122120100999. The next prime is 1122120101027. The reversal of 1122120101021 is 1201010212211.

It can be written as a sum of positive squares in 4 ways, for example, as 102547252900 + 1019572848121 = 320230^2 + 1009739^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122120101021 is a prime.

It is a super-2 number, since 2×1122120101021² (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 = 1122120100987 and 1122120101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122120101027) 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 7 ways as a sum of consecutive naturals, for example, 485681 + ... + 1574841.

It is an arithmetic number, because the mean of its divisors is an integer number (140542741575).

Almost surely, 2^{1122120101021} is an apocalyptic number.

It is an amenable number.

1122120101021 is a deficient number, since it is larger than the sum of its proper divisors (2221831579).

1122120101021 is a wasteful number, since it uses less digits than its factorization.

1122120101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091199.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1122120101021 its reverse (1201010212211), we get a palindrome (2323130313232).

The spelling of 1122120101021 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, one hundred one thousand, twenty-one".