10217131770021 has 16 divisors (see below), whose sum is σ = 15049400079360. Its totient is φ = 6113818779120.

The previous prime is 10217131770007. The next prime is 10217131770029. The reversal of 10217131770021 is 12007713171201.

It is not a de Polignac number, because 10217131770021 - 2⁴¹ = 8018108514469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10217131770029) 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 15 ways as a sum of consecutive naturals, for example, 1959554695 + ... + 1959559908.

It is an arithmetic number, because the mean of its divisors is an integer number (940587504960).

Almost surely, 2^{10217131770021} is an apocalyptic number.

10217131770021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10217131770021 is a deficient number, since it is larger than the sum of its proper divisors (4832268309339).

10217131770021 is a wasteful number, since it uses less digits than its factorization.

10217131770021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919114696.

The product of its (nonzero) digits is 4116, while the sum is 33.

The spelling of 10217131770021 in words is "ten trillion, two hundred seventeen billion, one hundred thirty-one million, seven hundred seventy thousand, twenty-one".