1122020020021 has 16 divisors (see below), whose sum is σ = 1160568031104. Its totient is φ = 1084124568384.

The previous prime is 1122020019979. The next prime is 1122020020027. The reversal of 1122020020021 is 1200200202211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1122020020021 - 2²⁹ = 1121483149109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122020019983 and 1122020020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122020020027) 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, 13641000 + ... + 13723006.

It is an arithmetic number, because the mean of its divisors is an integer number (72535501944).

Almost surely, 2^{1122020020021} is an apocalyptic number.

It is an amenable number.

1122020020021 is a deficient number, since it is larger than the sum of its proper divisors (38548011083).

1122020020021 is an equidigital number, since it uses as much as digits as its factorization.

1122020020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85980.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1122020020021 its reverse (1200200202211), we get a palindrome (2322220222232).

The spelling of 1122020020021 in words is "one trillion, one hundred twenty-two billion, twenty million, twenty thousand, twenty-one".