2220011101001 has 4 divisors (see below), whose sum is σ = 2220654772500. Its totient is φ = 2219367429504.

The previous prime is 2220011100971. The next prime is 2220011101037. The reversal of 2220011101001 is 1001011100222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 753986568976 + 1466024532025 = 868324^2 + 1210795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220011101001 - 2²² = 2220006906697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220011101081) 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 3 ways as a sum of consecutive naturals, for example, 321830576 + ... + 321837473.

It is an arithmetic number, because the mean of its divisors is an integer number (555163693125).

Almost surely, 2^{2220011101001} is an apocalyptic number.

It is an amenable number.

2220011101001 is a deficient number, since it is larger than the sum of its proper divisors (643671499).

2220011101001 is an equidigital number, since it uses as much as digits as its factorization.

2220011101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643671498.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2220011101001 its reverse (1001011100222), we get a palindrome (3221022201223).

The spelling of 2220011101001 in words is "two trillion, two hundred twenty billion, eleven million, one hundred one thousand, one".