190212101 has 2 divisors, whose sum is σ = 190212102. Its totient is φ = 190212100.

The previous prime is 190212049. The next prime is 190212107. The reversal of 190212101 is 101212091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188403076 + 1809025 = 13726^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 190212101 - 2⁶ = 190212037 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190212101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190212107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95106050 + 95106051.

It is an arithmetic number, because the mean of its divisors is an integer number (95106051).

Almost surely, 2^190212101 is an apocalyptic number.

It is an amenable number.

190212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

190212101 is an equidigital number, since it uses as much as digits as its factorization.

190212101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 190212101 is about 13791.7403180309. The cubic root of 190212101 is about 575.1035488371.

Adding to 190212101 its reverse (101212091), we get a palindrome (291424192).

The spelling of 190212101 in words is "one hundred ninety million, two hundred twelve thousand, one hundred one".