220100021011001 has 2 divisors, whose sum is σ = 220100021011002. Its totient is φ = 220100021011000.

The previous prime is 220100021010979. The next prime is 220100021011061. The reversal of 220100021011001 is 100110120001022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218413077228025 + 1686943782976 = 14778805^2 + 1298824^2 .

It is a cyclic number.

It is not a de Polignac number, because 220100021011001 - 2¹⁰ = 220100021009977 is a prime.

It is not a weakly prime, because it can be changed into another prime (220100021011061) 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 as a sum of consecutive naturals, namely, 110050010505500 + 110050010505501.

It is an arithmetic number, because the mean of its divisors is an integer number (110050010505501).

Almost surely, 2^{220100021011001} is an apocalyptic number.

It is an amenable number.

220100021011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220100021011001 is an equidigital number, since it uses as much as digits as its factorization.

220100021011001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220100021011001 its reverse (100110120001022), we get a palindrome (320210141012023).

The spelling of 220100021011001 in words is "two hundred twenty trillion, one hundred billion, twenty-one million, eleven thousand, one".