201012021101 has 2 divisors, whose sum is σ = 201012021102. Its totient is φ = 201012021100.

The previous prime is 201012021053. The next prime is 201012021109. The reversal of 201012021101 is 101120210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146115062500 + 54896958601 = 382250^2 + 234301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012021101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012021109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506010550 + 100506010551.

It is an arithmetic number, because the mean of its divisors is an integer number (100506010551).

Almost surely, 2^201012021101 is an apocalyptic number.

It is an amenable number.

201012021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012021101 is an equidigital number, since it uses as much as digits as its factorization.

201012021101 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 201012021101 its reverse (101120210102), we get a palindrome (302132231203).

The spelling of 201012021101 in words is "two hundred one billion, twelve million, twenty-one thousand, one hundred one".