10101921000291 has 16 divisors (see below), whose sum is σ = 15043351948320. Its totient is φ = 6699719623680.

The previous prime is 10101921000287. The next prime is 10101921000319. The reversal of 10101921000291 is 19200012910101.

It is not a de Polignac number, because 10101921000291 - 2² = 10101921000287 is a prime.

It is a super-2 number, since 2×10101921000291² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10101921000091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969282930 + ... + 969293351.

It is an arithmetic number, because the mean of its divisors is an integer number (940209496770).

Almost surely, 2^{10101921000291} is an apocalyptic number.

10101921000291 is a deficient number, since it is larger than the sum of its proper divisors (4941430948029).

10101921000291 is a wasteful number, since it uses less digits than its factorization.

10101921000291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938576483 (or 1938576477 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

Adding to 10101921000291 its reverse (19200012910101), we get a palindrome (29301933910392).

The spelling of 10101921000291 in words is "ten trillion, one hundred one billion, nine hundred twenty-one million, two hundred ninety-one", and thus it is an aban number.