1020010211001 has 8 divisors (see below), whose sum is σ = 1511126238560. Its totient is φ = 680006807316.

The previous prime is 1020010210963. The next prime is 1020010211029. The reversal of 1020010211001 is 1001120100201.

It is a happy number.

It is not a de Polignac number, because 1020010211001 - 2⁷ = 1020010210873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020010210001) 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, 18889077955 + ... + 18889078008.

It is an arithmetic number, because the mean of its divisors is an integer number (188890779820).

Almost surely, 2^{1020010211001} is an apocalyptic number.

It is an amenable number.

1020010211001 is a deficient number, since it is larger than the sum of its proper divisors (491116027559).

1020010211001 is an equidigital number, since it uses as much as digits as its factorization.

1020010211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37778155972 (or 37778155966 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1020010211001 its reverse (1001120100201), we get a palindrome (2021130311202).

The spelling of 1020010211001 in words is "one trillion, twenty billion, ten million, two hundred eleven thousand, one".