122111022001 has 4 divisors (see below), whose sum is σ = 124180700400. Its totient is φ = 120041343604.

The previous prime is 122111021999. The next prime is 122111022023. The reversal of 122111022001 is 100220111221.

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: 100220111221 = 167593 ⋅597997.

It is a cyclic number.

It is not a de Polignac number, because 122111022001 - 2¹ = 122111021999 is a prime.

It is a super-2 number, since 2×122111022001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122111022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034839111 + ... + 1034839228.

It is an arithmetic number, because the mean of its divisors is an integer number (31045175100).

Almost surely, 2^122111022001 is an apocalyptic number.

It is an amenable number.

122111022001 is a deficient number, since it is larger than the sum of its proper divisors (2069678399).

122111022001 is an equidigital number, since it uses as much as digits as its factorization.

122111022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069678398.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122111022001 its reverse (100220111221), we get a palindrome (222331133222).

The spelling of 122111022001 in words is "one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, one".