121263226432 has 14 divisors (see below), whose sum is σ = 240631715078. Its totient is φ = 60631613184.

The previous prime is 121263226423. The next prime is 121263226459. The reversal of 121263226432 is 234622362121.

It can be written as a sum of positive squares in only one way, i.e., 116646839296 + 4616387136 = 341536^2 + 67944^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 947368893 + ... + 947369020.

Almost surely, 2^121263226432 is an apocalyptic number.

It is an amenable number.

121263226432 is a deficient number, since it is larger than the sum of its proper divisors (119368488646).

121263226432 is an equidigital number, since it uses as much as digits as its factorization.

121263226432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894737925 (or 1894737915 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

Adding to 121263226432 its reverse (234622362121), we get a palindrome (355885588553).

The spelling of 121263226432 in words is "one hundred twenty-one billion, two hundred sixty-three million, two hundred twenty-six thousand, four hundred thirty-two".