121435214445 has 32 divisors (see below), whose sum is σ = 215957059200. Its totient is φ = 64743777792.

The previous prime is 121435214441. The next prime is 121435214471. The reversal of 121435214445 is 544412534121.

121435214445 is a `hidden beast` number, since 1 + 2 + 1 + 435 + 214 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 121435214445 - 2² = 121435214441 is a prime.

It is a super-2 number, since 2×121435214445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121435214441) 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 31 ways as a sum of consecutive naturals, for example, 258589 + ... + 556541.

It is an arithmetic number, because the mean of its divisors is an integer number (6748658100).

Almost surely, 2^121435214445 is an apocalyptic number.

121435214445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121435214445 is a deficient number, since it is larger than the sum of its proper divisors (94521844755).

121435214445 is a wasteful number, since it uses less digits than its factorization.

121435214445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300986 (or 300980 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 121435214445 its reverse (544412534121), we get a palindrome (665847748566).

The spelling of 121435214445 in words is "one hundred twenty-one billion, four hundred thirty-five million, two hundred fourteen thousand, four hundred forty-five".