121405255332 has 48 divisors (see below), whose sum is σ = 284384483712. Its totient is φ = 40310583040.

The previous prime is 121405255313. The next prime is 121405255351. The reversal of 121405255332 is 233552504121.

It is an interprime number because it is at equal distance from previous prime (121405255313) and next prime (121405255351).

It is a super-2 number, since 2×121405255332² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121405255293 and 121405255302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15955873 + ... + 15963479.

It is an arithmetic number, because the mean of its divisors is an integer number (5924676744).

Almost surely, 2^121405255332 is an apocalyptic number.

121405255332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121405255332 is an abundant number, since it is smaller than the sum of its proper divisors (162979228380).

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

121405255332 is a wasteful number, since it uses less digits than its factorization.

121405255332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12628 (or 12626 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 121405255332 its reverse (233552504121), we get a palindrome (354957759453).

The spelling of 121405255332 in words is "one hundred twenty-one billion, four hundred five million, two hundred fifty-five thousand, three hundred thirty-two".