220101012101 has 2 divisors, whose sum is σ = 220101012102. Its totient is φ = 220101012100.

The previous prime is 220101012097. The next prime is 220101012107. The reversal of 220101012101 is 101210101022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140774289601 + 79326722500 = 375199^2 + 281650^2 .

It is a cyclic number.

It is not a de Polignac number, because 220101012101 - 2² = 220101012097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220101012107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050506050 + 110050506051.

It is an arithmetic number, because the mean of its divisors is an integer number (110050506051).

Almost surely, 2^220101012101 is an apocalyptic number.

It is an amenable number.

220101012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101012101 is an equidigital number, since it uses as much as digits as its factorization.

220101012101 is an evil number, because the sum of its binary digits is even.

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

Adding to 220101012101 its reverse (101210101022), we get a palindrome (321311113123).

The spelling of 220101012101 in words is "two hundred twenty billion, one hundred one million, twelve thousand, one hundred one".