220120201000001 has 8 divisors (see below), whose sum is σ = 220660702728840. Its totient is φ = 219579710542848.

The previous prime is 220120200999983. The next prime is 220120201000027. The reversal of 220120201000001 is 100000102021022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71266536686401 + 148853664313600 = 8441951^2 + 12200560^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220120201000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220120201000031) 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, 36976265 + ... + 42514521.

It is an arithmetic number, because the mean of its divisors is an integer number (27582587841105).

Almost surely, 2^{220120201000001} is an apocalyptic number.

It is an amenable number.

220120201000001 is a deficient number, since it is larger than the sum of its proper divisors (540501728839).

220120201000001 is an equidigital number, since it uses as much as digits as its factorization.

220120201000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635843.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220120201000001 its reverse (100000102021022), we get a palindrome (320120303021023).

The spelling of 220120201000001 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred one million, one", and thus it is an aban number.