221021133002153 has 8 divisors (see below), whose sum is σ = 241121703816576. Its totient is φ = 200921852278000.

The previous prime is 221021133002149. The next prime is 221021133002239. The reversal of 221021133002153 is 351200331120122.

221021133002153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221021133002153 - 2² = 221021133002149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221021133062153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322164326 + ... + 322849647.

It is an arithmetic number, because the mean of its divisors is an integer number (30140212977072).

Almost surely, 2^{221021133002153} is an apocalyptic number.

It is an amenable number.

221021133002153 is a deficient number, since it is larger than the sum of its proper divisors (20100570814423).

221021133002153 is a wasteful number, since it uses less digits than its factorization.

221021133002153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645045135.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 221021133002153 its reverse (351200331120122), we get a palindrome (572221464122275).

The spelling of 221021133002153 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred thirty-three million, two thousand, one hundred fifty-three".