121010344420 has 24 divisors (see below), whose sum is σ = 290424826944. Its totient is φ = 41489260896.

The previous prime is 121010344393. The next prime is 121010344457. The reversal of 121010344420 is 24443010121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121010344391 and 121010344400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432179662 + ... + 432179941.

It is an arithmetic number, because the mean of its divisors is an integer number (12101034456).

Almost surely, 2^121010344420 is an apocalyptic number.

121010344420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010344420 is an abundant number, since it is smaller than the sum of its proper divisors (169414482524).

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

121010344420 is a wasteful number, since it uses less digits than its factorization.

121010344420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864359619 (or 864359617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121010344420 its reverse (24443010121), we get a palindrome (145453354541).

The spelling of 121010344420 in words is "one hundred twenty-one billion, ten million, three hundred forty-four thousand, four hundred twenty".