100221020220211 has 4 divisors (see below), whose sum is σ = 109332022058424. Its totient is φ = 91110018382000.

The previous prime is 100221020220203. The next prime is 100221020220221. The reversal of 100221020220211 is 112022020122001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100221020220211 - 2³ = 100221020220203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100221020220221) 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, 4555500919090 + ... + 4555500919111.

It is an arithmetic number, because the mean of its divisors is an integer number (27333005514606).

Almost surely, 2^{100221020220211} is an apocalyptic number.

100221020220211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100221020220211 is a deficient number, since it is larger than the sum of its proper divisors (9111001838213).

100221020220211 is an equidigital number, since it uses as much as digits as its factorization.

100221020220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111001838212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100221020220211 its reverse (112022020122001), we get a palindrome (212243040342212).

The spelling of 100221020220211 in words is "one hundred trillion, two hundred twenty-one billion, twenty million, two hundred twenty thousand, two hundred eleven".