121221013302 has 12 divisors (see below), whose sum is σ = 262645528860. Its totient is φ = 40407004428.

The previous prime is 121221013271. The next prime is 121221013307. The reversal of 121221013302 is 203310122121.

121221013302 is a `hidden beast` number, since 121 + 2 + 210 + 1 + 330 + 2 = 666.

121221013302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6734500739 = 121221013302 / (1 + 2 + 1 + 2 + 2 + 1 + 0 + 1 + 3 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221013307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3367250352 + ... + 3367250387.

It is an arithmetic number, because the mean of its divisors is an integer number (21887127405).

Almost surely, 2^121221013302 is an apocalyptic number.

121221013302 is an abundant number, since it is smaller than the sum of its proper divisors (141424515558).

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

121221013302 is a wasteful number, since it uses less digits than its factorization.

121221013302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734500747 (or 6734500744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121221013302 its reverse (203310122121), we get a palindrome (324531135423).

The spelling of 121221013302 in words is "one hundred twenty-one billion, two hundred twenty-one million, thirteen thousand, three hundred two".