153153221221 has 96 divisors (see below), whose sum is σ = 226463053824. Its totient is φ = 100331827200.

The previous prime is 153153221209. The next prime is 153153221237. The reversal of 153153221221 is 122122351351.

It is not a de Polignac number, because 153153221221 - 2¹¹ = 153153219173 is a prime.

153153221221 is a modest number, since divided by 221221 gives 153153 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 153153221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153153221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5789601 + ... + 5815993.

It is an arithmetic number, because the mean of its divisors is an integer number (2358990144).

Almost surely, 2^153153221221 is an apocalyptic number.

153153221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

153153221221 is a deficient number, since it is larger than the sum of its proper divisors (73309832603).

153153221221 is a wasteful number, since it uses less digits than its factorization.

153153221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26483 (or 26472 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

Adding to 153153221221 its reverse (122122351351), we get a palindrome (275275572572).

The spelling of 153153221221 in words is "one hundred fifty-three billion, one hundred fifty-three million, two hundred twenty-one thousand, two hundred twenty-one".