121222303020 has 288 divisors, whose sum is σ = 464797027968. Its totient is φ = 24885190656.

The previous prime is 121222302997. The next prime is 121222303031. The reversal of 121222303020 is 20303222121.

121222303020 is a `hidden beast` number, since 12 + 122 + 230 + 302 + 0 = 666.

It is a super-2 number, since 2×121222303020² (a number of 23 digits) contains 22 as substring.

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 = 121222302984 and 121222303002.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 506052 + ... + 706068.

Almost surely, 2^121222303020 is an apocalyptic number.

121222303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121222303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232398513984).

121222303020 is an abundant number, since it is smaller than the sum of its proper divisors (343574724948).

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

121222303020 is a wasteful number, since it uses less digits than its factorization.

121222303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200089 (or 200084 counting only the distinct ones).

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

Adding to 121222303020 its reverse (20303222121), we get a palindrome (141525525141).

The spelling of 121222303020 in words is "one hundred twenty-one billion, two hundred twenty-two million, three hundred three thousand, twenty".