1201001222001 has 8 divisors (see below), whose sum is σ = 1830097100224. Its totient is φ = 686286412560.

The previous prime is 1201001221997. The next prime is 1201001222023. The reversal of 1201001222001 is 1002221001021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201001222001 - 2² = 1201001221997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201001222041) 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, 28595267170 + ... + 28595267211.

It is an arithmetic number, because the mean of its divisors is an integer number (228762137528).

Almost surely, 2^{1201001222001} is an apocalyptic number.

It is an amenable number.

1201001222001 is a deficient number, since it is larger than the sum of its proper divisors (629095878223).

1201001222001 is an equidigital number, since it uses as much as digits as its factorization.

1201001222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57190534391.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1201001222001 its reverse (1002221001021), we get a palindrome (2203222223022).

The spelling of 1201001222001 in words is "one trillion, two hundred one billion, one million, two hundred twenty-two thousand, one".