2101000001022 has 48 divisors (see below), whose sum is σ = 4904624245248. Its totient is φ = 646159440960.

The previous prime is 2101000001017. The next prime is 2101000001029. The reversal of 2101000001022 is 2201000001012.

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

It is a junction number, because it is equal to n+sod(n) for n = 2101000000995 and 2101000001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101000001029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1595838 + ... + 2597825.

It is an arithmetic number, because the mean of its divisors is an integer number (102179671776).

Almost surely, 2^{2101000001022} is an apocalyptic number.

2101000001022 is an abundant number, since it is smaller than the sum of its proper divisors (2803624244226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101000001022 is a wasteful number, since it uses less digits than its factorization.

2101000001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195825 (or 4195822 counting only the distinct ones).

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

Adding to 2101000001022 its reverse (2201000001012), we get a palindrome (4302000002034).

The spelling of 2101000001022 in words is "two trillion, one hundred one billion, one thousand, twenty-two".