122001022021 has 8 divisors (see below), whose sum is σ = 124026656600. Its totient is φ = 119984965632.

The previous prime is 122001021991. The next prime is 122001022027. The reversal of 122001022021 is 120220100221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17533732225 + 104467289796 = 132415^2 + 323214^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122001022021 - 2¹⁹ = 122000497733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001021992 and 122001022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001022027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368860 + ... + 2419813.

It is an arithmetic number, because the mean of its divisors is an integer number (15503332075).

Almost surely, 2^122001022021 is an apocalyptic number.

It is an amenable number.

122001022021 is a deficient number, since it is larger than the sum of its proper divisors (2025634579).

122001022021 is an equidigital number, since it uses as much as digits as its factorization.

122001022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789095.

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

Adding to 122001022021 its reverse (120220100221), we get a palindrome (242221122242).

The spelling of 122001022021 in words is "one hundred twenty-two billion, one million, twenty-two thousand, twenty-one".