210222020101 has 2 divisors, whose sum is σ = 210222020102. Its totient is φ = 210222020100.

The previous prime is 210222020069. The next prime is 210222020123. The reversal of 210222020101 is 101020222012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192546317601 + 17675702500 = 438801^2 + 132950^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222020101 - 2⁵ = 210222020069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222020201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111010050 + 105111010051.

It is an arithmetic number, because the mean of its divisors is an integer number (105111010051).

Almost surely, 2^210222020101 is an apocalyptic number.

It is an amenable number.

210222020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222020101 is an equidigital number, since it uses as much as digits as its factorization.

210222020101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210222020101 its reverse (101020222012), we get a palindrome (311242242113).

The spelling of 210222020101 in words is "two hundred ten billion, two hundred twenty-two million, twenty thousand, one hundred one".