121122021402432 has 84 divisors (see below), whose sum is σ = 362268944487840. Its totient is φ = 38618615515392.

The previous prime is 121122021402337. The next prime is 121122021402533. The reversal of 121122021402432 is 234204120221121.

121122021402432 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 220 + 2 + 1 + 4 + 0 + 2 + 432 = 666.

It is a super-2 number, since 2×121122021402432² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121122021402396 and 121122021402405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4571319082 + ... + 4571345577.

Almost surely, 2^{121122021402432} is an apocalyptic number.

121122021402432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121122021402432 is an abundant number, since it is smaller than the sum of its proper divisors (241146923085408).

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

121122021402432 is a wasteful number, since it uses less digits than its factorization.

121122021402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142664700 (or 9142664687 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 121122021402432 its reverse (234204120221121), we get a palindrome (355326141623553).

The spelling of 121122021402432 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-one million, four hundred two thousand, four hundred thirty-two".