201012212220077 has 2 divisors, whose sum is σ = 201012212220078. Its totient is φ = 201012212220076.

The previous prime is 201012212220031. The next prime is 201012212220119. The reversal of 201012212220077 is 770022212210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199103783251396 + 1908428968681 = 14110414^2 + 1381459^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012212220077 - 2¹⁸ = 201012211957933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012212222077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506106110038 + 100506106110039.

It is an arithmetic number, because the mean of its divisors is an integer number (100506106110039).

Almost surely, 2^{201012212220077} is an apocalyptic number.

It is an amenable number.

201012212220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012212220077 is an equidigital number, since it uses as much as digits as its factorization.

201012212220077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

Adding to 201012212220077 its reverse (770022212210102), we get a palindrome (971034424430179).

The spelling of 201012212220077 in words is "two hundred one trillion, twelve billion, two hundred twelve million, two hundred twenty thousand, seventy-seven".