121421340030220 has 12 divisors (see below), whose sum is σ = 254984814063504. Its totient is φ = 48568536012080.

The previous prime is 121421340030127. The next prime is 121421340030269. The reversal of 121421340030220 is 22030043124121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035533500736 + ... + 3035533500775.

It is an arithmetic number, because the mean of its divisors is an integer number (21248734505292).

Almost surely, 2^{121421340030220} is an apocalyptic number.

121421340030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121421340030220 is an abundant number, since it is smaller than the sum of its proper divisors (133563474033284).

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

121421340030220 is a wasteful number, since it uses less digits than its factorization.

121421340030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071067001520 (or 6071067001518 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121421340030220 its reverse (22030043124121), we get a palindrome (143451383154341).

The spelling of 121421340030220 in words is "one hundred twenty-one trillion, four hundred twenty-one billion, three hundred forty million, thirty thousand, two hundred twenty".