201001212089 has 2 divisors, whose sum is σ = 201001212090. Its totient is φ = 201001212088.

The previous prime is 201001212031. The next prime is 201001212103. The reversal of 201001212089 is 980212100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181101313600 + 19899898489 = 425560^2 + 141067^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001212089 - 2²⁸ = 200732776633 is a prime.

It is a super-2 number, since 2×201001212089² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201001212589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500606044 + 100500606045.

It is an arithmetic number, because the mean of its divisors is an integer number (100500606045).

Almost surely, 2^201001212089 is an apocalyptic number.

It is an amenable number.

201001212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001212089 is an equidigital number, since it uses as much as digits as its factorization.

201001212089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 201001212089 in words is "two hundred one billion, one million, two hundred twelve thousand, eighty-nine".