121202412124432 has 10 divisors (see below), whose sum is σ = 234829673491118. Its totient is φ = 60601206062208.

The previous prime is 121202412124393. The next prime is 121202412124433. The reversal of 121202412124432 is 234421214202121.

It can be written as a sum of positive squares in only one way, i.e., 120885978873856 + 316433250576 = 10994816^2 + 562524^2 .

It is a super-2 number, since 2×121202412124432² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121202412124394 and 121202412124403.

It is not an unprimeable number, because it can be changed into a prime (121202412124433) by changing a digit.

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 as a sum of consecutive naturals, namely, 3787575378873 + ... + 3787575378904.

Almost surely, 2^{121202412124432} is an apocalyptic number.

It is an amenable number.

121202412124432 is a deficient number, since it is larger than the sum of its proper divisors (113627261366686).

121202412124432 is an equidigital number, since it uses as much as digits as its factorization.

121202412124432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575150757785 (or 7575150757779 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 121202412124432 its reverse (234421214202121), we get a palindrome (355623626326553).

The spelling of 121202412124432 in words is "one hundred twenty-one trillion, two hundred two billion, four hundred twelve million, one hundred twenty-four thousand, four hundred thirty-two".