101221001210143 has 2 divisors, whose sum is σ = 101221001210144. Its totient is φ = 101221001210142.

The previous prime is 101221001210111. The next prime is 101221001210179. The reversal of 101221001210143 is 341012100122101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101221001210143 - 2⁵ = 101221001210111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101221001210143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221001210543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610500605071 + 50610500605072.

It is an arithmetic number, because the mean of its divisors is an integer number (50610500605072).

Almost surely, 2^{101221001210143} is an apocalyptic number.

101221001210143 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221001210143 is an equidigital number, since it uses as much as digits as its factorization.

101221001210143 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 101221001210143 its reverse (341012100122101), we get a palindrome (442233101332244).

The spelling of 101221001210143 in words is "one hundred one trillion, two hundred twenty-one billion, one million, two hundred ten thousand, one hundred forty-three".