122220012001 has 4 divisors (see below), whose sum is σ = 122224343472. Its totient is φ = 122215680532.

The previous prime is 122220011983. The next prime is 122220012043. The reversal of 122220012001 is 100210022221.

It is a happy number.

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: 100210022221 = 373 ⋅268659577.

It is a cyclic number.

It is not a de Polignac number, because 122220012001 - 2¹¹ = 122220009953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220012601) 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, 2123131 + ... + 2179936.

It is an arithmetic number, because the mean of its divisors is an integer number (30556085868).

Almost surely, 2^122220012001 is an apocalyptic number.

It is an amenable number.

122220012001 is a deficient number, since it is larger than the sum of its proper divisors (4331471).

122220012001 is an equidigital number, since it uses as much as digits as its factorization.

122220012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331470.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122220012001 its reverse (100210022221), we get a palindrome (222430034222).

The spelling of 122220012001 in words is "one hundred twenty-two billion, two hundred twenty million, twelve thousand, one".