2031220001 has 8 divisors (see below), whose sum is σ = 2115369000. Its totient is φ = 1948011520.

The previous prime is 2031219979. The next prime is 2031220003. The reversal of 2031220001 is 1000221302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10627600 + 2020592401 = 3260^2 + 44951^2 .

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 2031220001 - 2¹⁴ = 2031203617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031220003) 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, 230720 + ... + 239361.

It is an arithmetic number, because the mean of its divisors is an integer number (264421125).

Almost surely, 2^2031220001 is an apocalyptic number.

It is an amenable number.

2031220001 is a deficient number, since it is larger than the sum of its proper divisors (84148999).

2031220001 is a wasteful number, since it uses less digits than its factorization.

2031220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470259.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2031220001 is about 45069.0581330473. The cubic root of 2031220001 is about 1266.4430201253.

Adding to 2031220001 its reverse (1000221302), we get a palindrome (3031441303).

The spelling of 2031220001 in words is "two billion, thirty-one million, two hundred twenty thousand, one".