2101660022 has 16 divisors (see below), whose sum is σ = 3930377472. Its totient is φ = 818828520.

The previous prime is 2101659991. The next prime is 2101660027. The reversal of 2101660022 is 2200661012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101659976 and 2101660003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101660027) 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 7 ways as a sum of consecutive naturals, for example, 6823418 + ... + 6823725.

It is an arithmetic number, because the mean of its divisors is an integer number (245648592).

Almost surely, 2^2101660022 is an apocalyptic number.

2101660022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101660022 is a deficient number, since it is larger than the sum of its proper divisors (1828717450).

2101660022 is a wasteful number, since it uses less digits than its factorization.

2101660022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13647163.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2101660022 is about 45843.8656965139. The cubic root of 2101660022 is about 1280.9165030345.

It can be divided in two parts, 210166002 and 2, that multiplied together give a square (420332004 = 20502²).

The spelling of 2101660022 in words is "two billion, one hundred one million, six hundred sixty thousand, twenty-two".