220111020210101 has 2 divisors, whose sum is σ = 220111020210102. Its totient is φ = 220111020210100.

The previous prime is 220111020210097. The next prime is 220111020210143. The reversal of 220111020210101 is 101012020111022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215084927019076 + 5026093191025 = 14665774^2 + 2241895^2 .

It is a cyclic number.

It is not a de Polignac number, because 220111020210101 - 2² = 220111020210097 is a prime.

It is a super-2 number, since 2×220111020210101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220111020210001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055510105050 + 110055510105051.

It is an arithmetic number, because the mean of its divisors is an integer number (110055510105051).

Almost surely, 2^{220111020210101} is an apocalyptic number.

It is an amenable number.

220111020210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111020210101 is an equidigital number, since it uses as much as digits as its factorization.

220111020210101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220111020210101 its reverse (101012020111022), we get a palindrome (321123040321123).

The spelling of 220111020210101 in words is "two hundred twenty trillion, one hundred eleven billion, twenty million, two hundred ten thousand, one hundred one".