122220211102021 has 4 divisors (see below), whose sum is σ = 127534133323872. Its totient is φ = 116906288880172.

The previous prime is 122220211102019. The next prime is 122220211102061. The reversal of 122220211102021 is 120201112022221.

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.

It is a cyclic number.

It is not a de Polignac number, because 122220211102021 - 2¹ = 122220211102019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122220211102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220211102061) 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, 2656961110891 + ... + 2656961110936.

It is an arithmetic number, because the mean of its divisors is an integer number (31883533330968).

Almost surely, 2^{122220211102021} is an apocalyptic number.

It is an amenable number.

122220211102021 is a deficient number, since it is larger than the sum of its proper divisors (5313922221851).

122220211102021 is an equidigital number, since it uses as much as digits as its factorization.

122220211102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313922221850.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122220211102021 its reverse (120201112022221), we get a palindrome (242421323124242).

The spelling of 122220211102021 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred eleven million, one hundred two thousand, twenty-one".