121322005512 has 32 divisors (see below), whose sum is σ = 303429110400. Its totient is φ = 40424122304.

The previous prime is 121322005501. The next prime is 121322005559. The reversal of 121322005512 is 215500223121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 974187 + ... + 1091642.

It is an arithmetic number, because the mean of its divisors is an integer number (9482159700).

Almost surely, 2^121322005512 is an apocalyptic number.

121322005512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121322005512 is an abundant number, since it is smaller than the sum of its proper divisors (182107104888).

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

121322005512 is a wasteful number, since it uses less digits than its factorization.

121322005512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068285 (or 2068281 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 121322005512 its reverse (215500223121), we get a palindrome (336822228633).

The spelling of 121322005512 in words is "one hundred twenty-one billion, three hundred twenty-two million, five thousand, five hundred twelve".