122122222001 has 8 divisors (see below), whose sum is σ = 131545213800. Its totient is φ = 112703369472.

The previous prime is 122122221997. The next prime is 122122222081. The reversal of 122122222001 is 100222221221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15715129600 + 106407092401 = 125360^2 + 326201^2 .

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 122122222001 - 2² = 122122221997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122122222081) 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, 973400 + ... + 1091673.

It is an arithmetic number, because the mean of its divisors is an integer number (16443151725).

Almost surely, 2^122122222001 is an apocalyptic number.

It is an amenable number.

122122222001 is a deficient number, since it is larger than the sum of its proper divisors (9422991799).

122122222001 is a wasteful number, since it uses less digits than its factorization.

122122222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069635.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122122222001 its reverse (100222221221), we get a palindrome (222344443222).

The spelling of 122122222001 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, one".