2101022000001 has 12 divisors (see below), whose sum is σ = 3044383091412. Its totient is φ = 1396262778336.

The previous prime is 2101021999969. The next prime is 2101022000009. The reversal of 2101022000001 is 1000002201012.

It can be written as a sum of positive squares in 2 ways, for example, as 149200650225 + 1951821349776 = 386265^2 + 1397076^2 .

It is not a de Polignac number, because 2101022000001 - 2⁵ = 2101021999969 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2101022000009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368209906 + ... + 368215611.

It is an arithmetic number, because the mean of its divisors is an integer number (253698590951).

Almost surely, 2^{2101022000001} is an apocalyptic number.

It is an amenable number.

2101022000001 is a deficient number, since it is larger than the sum of its proper divisors (943361091411).

2101022000001 is a wasteful number, since it uses less digits than its factorization.

2101022000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736425840 (or 736425837 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2101022000001 its reverse (1000002201012), we get a palindrome (3101024201013).

The spelling of 2101022000001 in words is "two trillion, one hundred one billion, twenty-two million, one", and thus it is an aban number.