121302301220 has 12 divisors (see below), whose sum is σ = 254734832604. Its totient is φ = 48520920480.

The previous prime is 121302301163. The next prime is 121302301223. The reversal of 121302301220 is 22103203121.

It can be written as a sum of positive squares in 2 ways, for example, as 92247053284 + 29055247936 = 303722^2 + 170456^2 .

It is a super-2 number, since 2×121302301220² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121302301223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3032557511 + ... + 3032557550.

It is an arithmetic number, because the mean of its divisors is an integer number (21227902717).

Almost surely, 2^121302301220 is an apocalyptic number.

121302301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121302301220 is an abundant number, since it is smaller than the sum of its proper divisors (133432531384).

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

121302301220 is a wasteful number, since it uses less digits than its factorization.

121302301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065115070 (or 6065115068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121302301220 its reverse (22103203121), we get a palindrome (143405504341).

The spelling of 121302301220 in words is "one hundred twenty-one billion, three hundred two million, three hundred one thousand, two hundred twenty".