153621213212 has 24 divisors (see below), whose sum is σ = 269332753200. Its totient is φ = 76669122816.

The previous prime is 153621213203. The next prime is 153621213223. The reversal of 153621213212 is 212312126351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5321714 + ... + 5350502.

It is an arithmetic number, because the mean of its divisors is an integer number (11222198050).

Almost surely, 2^153621213212 is an apocalyptic number.

It is an amenable number.

153621213212 is a deficient number, since it is larger than the sum of its proper divisors (115711539988).

153621213212 is a wasteful number, since it uses less digits than its factorization.

153621213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31205 (or 31203 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

Adding to 153621213212 its reverse (212312126351), we get a palindrome (365933339563).

The spelling of 153621213212 in words is "one hundred fifty-three billion, six hundred twenty-one million, two hundred thirteen thousand, two hundred twelve".