122010203021 has 4 divisors (see below), whose sum is σ = 139440232032. Its totient is φ = 104580174012.

The previous prime is 122010203017. The next prime is 122010203033. The reversal of 122010203021 is 120302010221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120302010221 = 127 ⋅947259923.

It is a cyclic number.

It is not a de Polignac number, because 122010203021 - 2² = 122010203017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122010202987 and 122010203005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010203011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715014495 + ... + 8715014508.

It is an arithmetic number, because the mean of its divisors is an integer number (34860058008).

Almost surely, 2^122010203021 is an apocalyptic number.

It is an amenable number.

122010203021 is a deficient number, since it is larger than the sum of its proper divisors (17430029011).

122010203021 is an equidigital number, since it uses as much as digits as its factorization.

122010203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430029010.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 122010203021 its reverse (120302010221), we get a palindrome (242312213242).

The spelling of 122010203021 in words is "one hundred twenty-two billion, ten million, two hundred three thousand, twenty-one".