122220222100001 has 16 divisors (see below), whose sum is σ = 124210018560000. Its totient is φ = 120235399764480.

The previous prime is 122220222099991. The next prime is 122220222100007. The reversal of 122220222100001 is 100001222022221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-122220222100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220222100007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156683936 + ... + 157462046.

It is an arithmetic number, because the mean of its divisors is an integer number (7763126160000).

Almost surely, 2^{122220222100001} is an apocalyptic number.

It is an amenable number.

122220222100001 is a deficient number, since it is larger than the sum of its proper divisors (1989796459999).

122220222100001 is a wasteful number, since it uses less digits than its factorization.

122220222100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781304.

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

Adding to 122220222100001 its reverse (100001222022221), we get a palindrome (222221444122222).

The spelling of 122220222100001 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred thousand, one".