121422310040 has 32 divisors (see below), whose sum is σ = 273606202080. Its totient is φ = 48496745472.

The previous prime is 121422310013. The next prime is 121422310057. The reversal of 121422310040 is 40013224121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121422309994 and 121422310021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2228324 + ... + 2282163.

It is an arithmetic number, because the mean of its divisors is an integer number (8550193815).

Almost surely, 2^121422310040 is an apocalyptic number.

121422310040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121422310040 is an abundant number, since it is smaller than the sum of its proper divisors (152183892040).

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

121422310040 is a wasteful number, since it uses less digits than its factorization.

121422310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511171 (or 4511167 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121422310040 its reverse (40013224121), we get a palindrome (161435534161).

The spelling of 121422310040 in words is "one hundred twenty-one billion, four hundred twenty-two million, three hundred ten thousand, forty".