2220121000999 has 8 divisors (see below), whose sum is σ = 2452607781120. Its totient is φ = 1992743820600.

The previous prime is 2220121000931. The next prime is 2220121001009. The reversal of 2220121000999 is 9990001210222.

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

It is a cyclic number.

It is not a de Polignac number, because 2220121000999 - 2¹⁷ = 2220120869927 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 (2220121000919) 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, 1277399017 + ... + 1277400754.

It is an arithmetic number, because the mean of its divisors is an integer number (306575972640).

Almost surely, 2^{2220121000999} is an apocalyptic number.

2220121000999 is a deficient number, since it is larger than the sum of its proper divisors (232486780121).

2220121000999 is a wasteful number, since it uses less digits than its factorization.

2220121000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554799861.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 2220121000999 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, nine hundred ninety-nine", and thus it is an aban number.