12021462153156 has 24 divisors (see below), whose sum is σ = 28050468130944. Its totient is φ = 4007098369120.

The previous prime is 12021462153143. The next prime is 12021462153157. The reversal of 12021462153156 is 65135126412021.

It is not an unprimeable number, because it can be changed into a prime (12021462153157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6055980 + ... + 7792163.

It is an arithmetic number, because the mean of its divisors is an integer number (1168769505456).

Almost surely, 2^{12021462153156} is an apocalyptic number.

It is an amenable number.

12021462153156 is an abundant number, since it is smaller than the sum of its proper divisors (16029005977788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021462153156 is a wasteful number, since it uses less digits than its factorization.

12021462153156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13920491 (or 13920489 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 12021462153156 its reverse (65135126412021), we get a palindrome (77156588565177).

The spelling of 12021462153156 in words is "twelve trillion, twenty-one billion, four hundred sixty-two million, one hundred fifty-three thousand, one hundred fifty-six".