1122420032021 has 16 divisors (see below), whose sum is σ = 1140906023040. Its totient is φ = 1104019994880.

The previous prime is 1122420032003. The next prime is 1122420032023. The reversal of 1122420032021 is 1202300242211.

It is a cyclic number.

It is not a de Polignac number, because 1122420032021 - 2²⁶ = 1122352923157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122420031984 and 1122420032002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122420032023) 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, 135832736 + ... + 135840998.

It is an arithmetic number, because the mean of its divisors is an integer number (71306626440).

Almost surely, 2^{1122420032021} is an apocalyptic number.

It is an amenable number.

1122420032021 is a deficient number, since it is larger than the sum of its proper divisors (18485991019).

1122420032021 is an equidigital number, since it uses as much as digits as its factorization.

1122420032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1122420032021 its reverse (1202300242211), we get a palindrome (2324720274232).

The spelling of 1122420032021 in words is "one trillion, one hundred twenty-two billion, four hundred twenty million, thirty-two thousand, twenty-one".