121300221030 has 16 divisors (see below), whose sum is σ = 291120530544. Its totient is φ = 32346725600.

The previous prime is 121300221013. The next prime is 121300221037. The reversal of 121300221030 is 30122003121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300221037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021670321 + ... + 2021670380.

It is an arithmetic number, because the mean of its divisors is an integer number (18195033159).

Almost surely, 2^121300221030 is an apocalyptic number.

121300221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121300221030 is an abundant number, since it is smaller than the sum of its proper divisors (169820309514).

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

121300221030 is a wasteful number, since it uses less digits than its factorization.

121300221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043340711.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121300221030 its reverse (30122003121), we get a palindrome (151422224151).

The spelling of 121300221030 in words is "one hundred twenty-one billion, three hundred million, two hundred twenty-one thousand, thirty".