101221012153 has 2 divisors, whose sum is σ = 101221012154. Its totient is φ = 101221012152.

The previous prime is 101221012099. The next prime is 101221012157. The reversal of 101221012153 is 351210122101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96679330489 + 4541681664 = 310933^2 + 67392^2 .

It is a cyclic number.

It is not a de Polignac number, because 101221012153 - 2²⁹ = 100684141241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101221012153.

It is not a weakly prime, because it can be changed into another prime (101221012157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610506076 + 50610506077.

It is an arithmetic number, because the mean of its divisors is an integer number (50610506077).

Almost surely, 2^101221012153 is an apocalyptic number.

It is an amenable number.

101221012153 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221012153 is an equidigital number, since it uses as much as digits as its factorization.

101221012153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 101221012153 its reverse (351210122101), we get a palindrome (452431134254).

The spelling of 101221012153 in words is "one hundred one billion, two hundred twenty-one million, twelve thousand, one hundred fifty-three".