121000221100230 has 64 divisors (see below), whose sum is σ = 293929705774080. Its totient is φ = 31875252459776.

The previous prime is 121000221100147. The next prime is 121000221100379. The reversal of 121000221100230 is 32001122000121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17598252 + ... + 23488271.

It is an arithmetic number, because the mean of its divisors is an integer number (4592651652720).

Almost surely, 2^{121000221100230} is an apocalyptic number.

121000221100230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000221100230 is an abundant number, since it is smaller than the sum of its proper divisors (172929484673850).

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

121000221100230 is a wasteful number, since it uses less digits than its factorization.

121000221100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41087725.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121000221100230 its reverse (32001122000121), we get a palindrome (153001343100351).

The spelling of 121000221100230 in words is "one hundred twenty-one trillion, two hundred twenty-one million, one hundred thousand, two hundred thirty".