10000002121989 has 16 divisors (see below), whose sum is σ = 14610683910144. Its totient is φ = 6033429730800.

The previous prime is 10000002121987. The next prime is 10000002122009. The reversal of 10000002121989 is 98912120000001.

It is not a de Polignac number, because 10000002121989 - 2¹ = 10000002121987 is a prime.

It is a super-2 number, since 2×10000002121989² (a number of 27 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000002121987) 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, 679432927 + ... + 679447644.

It is an arithmetic number, because the mean of its divisors is an integer number (913167744384).

Almost surely, 2^{10000002121989} is an apocalyptic number.

It is an amenable number.

10000002121989 is a deficient number, since it is larger than the sum of its proper divisors (4610681788155).

10000002121989 is a wasteful number, since it uses less digits than its factorization.

10000002121989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358880808.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 10000002121989 in words is "ten trillion, two million, one hundred twenty-one thousand, nine hundred eighty-nine".