2990221121001 has 4 divisors (see below), whose sum is σ = 3986961494672. Its totient is φ = 1993480747332.

The previous prime is 2990221120979. The next prime is 2990221121023. The reversal of 2990221121001 is 1001211220992.

2990221121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2990221120979) and next prime (2990221121023).

It is not a de Polignac number, because 2990221121001 - 2⁹ = 2990221120489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2990221121001.

It is not an unprimeable number, because it can be changed into a prime (2990221121081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498370186831 + ... + 498370186836.

It is an arithmetic number, because the mean of its divisors is an integer number (996740373668).

Almost surely, 2^{2990221121001} is an apocalyptic number.

It is an amenable number.

2990221121001 is a deficient number, since it is larger than the sum of its proper divisors (996740373671).

2990221121001 is an equidigital number, since it uses as much as digits as its factorization.

2990221121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996740373670.

The product of its (nonzero) digits is 1296, while the sum is 30.

Adding to 2990221121001 its reverse (1001211220992), we get a palindrome (3991432341993).

The spelling of 2990221121001 in words is "two trillion, nine hundred ninety billion, two hundred twenty-one million, one hundred twenty-one thousand, one".