201001212211123 has 2 divisors, whose sum is σ = 201001212211124. Its totient is φ = 201001212211122.

The previous prime is 201001212211087. The next prime is 201001212211139. The reversal of 201001212211123 is 321112212100102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201001212211123 - 2²¹ = 201001210113971 is a prime.

It is a super-2 number, since 2×201001212211123² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201001212211123.

It is not a weakly prime, because it can be changed into another prime (201001212211183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500606105561 + 100500606105562.

It is an arithmetic number, because the mean of its divisors is an integer number (100500606105562).

Almost surely, 2^{201001212211123} is an apocalyptic number.

201001212211123 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001212211123 is an equidigital number, since it uses as much as digits as its factorization.

201001212211123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201001212211123 its reverse (321112212100102), we get a palindrome (522113424311225).

The spelling of 201001212211123 in words is "two hundred one trillion, one billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-three".