1012020220001 has 16 divisors (see below), whose sum is σ = 1174029184896. Its totient is φ = 854373712896.

The previous prime is 1012020219989. The next prime is 1012020220007. The reversal of 1012020220001 is 1000220202101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1012020220001 - 2¹⁸ = 1012019957857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012020220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3117575 + ... + 3426851.

It is an arithmetic number, because the mean of its divisors is an integer number (73376824056).

Almost surely, 2^{1012020220001} is an apocalyptic number.

It is an amenable number.

1012020220001 is a deficient number, since it is larger than the sum of its proper divisors (162008964895).

1012020220001 is an equidigital number, since it uses as much as digits as its factorization.

1012020220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316328.

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

Adding to 1012020220001 its reverse (1000220202101), we get a palindrome (2012240422102).

The spelling of 1012020220001 in words is "one trillion, twelve billion, twenty million, two hundred twenty thousand, one".