2101022131986 has 32 divisors (see below), whose sum is σ = 4829935939200. Its totient is φ = 676191030480.

The previous prime is 2101022131921. The next prime is 2101022131987. The reversal of 2101022131986 is 6891312201012.

2101022131986 is a `hidden beast` number, since 210 + 102 + 21 + 319 + 8 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2101022131986.

It is not an unprimeable number, because it can be changed into a prime (2101022131987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670822870 + ... + 670826001.

It is an arithmetic number, because the mean of its divisors is an integer number (150935498100).

Almost surely, 2^{2101022131986} is an apocalyptic number.

2101022131986 is an abundant number, since it is smaller than the sum of its proper divisors (2728913807214).

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

2101022131986 is a wasteful number, since it uses less digits than its factorization.

2101022131986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341648911 (or 1341648905 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

Adding to 2101022131986 its reverse (6891312201012), we get a palindrome (8992334332998).

The spelling of 2101022131986 in words is "two trillion, one hundred one billion, twenty-two million, one hundred thirty-one thousand, nine hundred eighty-six".