2002101122090 has 16 divisors (see below), whose sum is σ = 3613443640488. Its totient is φ = 798693422016.

The previous prime is 2002101122089. The next prime is 2002101122123. The reversal of 2002101122090 is 902211012002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1955307212329 + 46793909761 = 1398323^2 + 216319^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268374437 + ... + 268381896.

Almost surely, 2^{2002101122090} is an apocalyptic number.

2002101122090 is a deficient number, since it is larger than the sum of its proper divisors (1611342518398).

2002101122090 is a wasteful number, since it uses less digits than its factorization.

2002101122090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536756713.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2002101122090 its reverse (902211012002), we get a palindrome (2904312134092).

The spelling of 2002101122090 in words is "two trillion, two billion, one hundred one million, one hundred twenty-two thousand, ninety".