122111002222001 has 4 divisors (see below), whose sum is σ = 131504156239092. Its totient is φ = 112717848204912.

The previous prime is 122111002221983. The next prime is 122111002222009. The reversal of 122111002222001 is 100222200111221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11464481333776 + 110646520888225 = 3385924^2 + 10518865^2 .

It is a cyclic number.

It is not a de Polignac number, because 122111002222001 - 2⁶ = 122111002221937 is a prime.

It is a super-2 number, since 2×122111002222001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122111002222009) 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, 4696577008526 + ... + 4696577008551.

It is an arithmetic number, because the mean of its divisors is an integer number (32876039059773).

Almost surely, 2^{122111002222001} is an apocalyptic number.

It is an amenable number.

122111002222001 is a deficient number, since it is larger than the sum of its proper divisors (9393154017091).

122111002222001 is an equidigital number, since it uses as much as digits as its factorization.

122111002222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393154017090.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122111002222001 its reverse (100222200111221), we get a palindrome (222333202333222).

The spelling of 122111002222001 in words is "one hundred twenty-two trillion, one hundred eleven billion, two million, two hundred twenty-two thousand, one".