1021112209973 has 8 divisors (see below), whose sum is σ = 1053542696640. Its totient is φ = 989040071520.

The previous prime is 1021112209951. The next prime is 1021112209987. The reversal of 1021112209973 is 3799022111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021112209973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112202973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89581265 + ... + 89592662.

It is an arithmetic number, because the mean of its divisors is an integer number (131692837080).

Almost surely, 2^{1021112209973} is an apocalyptic number.

It is an amenable number.

1021112209973 is a deficient number, since it is larger than the sum of its proper divisors (32430486667).

1021112209973 is a wasteful number, since it uses less digits than its factorization.

1021112209973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179174107.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 1021112209973 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred nine thousand, nine hundred seventy-three".