121202223030 has 288 divisors, whose sum is σ = 392380305408. Its totient is φ = 25397193600.

The previous prime is 121202223017. The next prime is 121202223073. The reversal of 121202223030 is 30322202121.

121202223030 is a `hidden beast` number, since 121 + 20 + 222 + 303 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121202222994 and 121202223012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7041735 + ... + 7058925.

It is an arithmetic number, because the mean of its divisors is an integer number (1362431616).

Almost surely, 2^121202223030 is an apocalyptic number.

121202223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121202223030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196190152704).

121202223030 is an abundant number, since it is smaller than the sum of its proper divisors (271178082378).

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

121202223030 is a wasteful number, since it uses less digits than its factorization.

121202223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17280 (or 17258 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 121202223030 its reverse (30322202121), we get a palindrome (151524425151).

The spelling of 121202223030 in words is "one hundred twenty-one billion, two hundred two million, two hundred twenty-three thousand, thirty".