121311002202220 has 24 divisors (see below), whose sum is σ = 258341176523808. Its totient is φ = 47840958614400.

The previous prime is 121311002202167. The next prime is 121311002202223. The reversal of 121311002202220 is 22202200113121.

It is not an unprimeable number, because it can be changed into a prime (121311002202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42715140201 + ... + 42715143040.

It is an arithmetic number, because the mean of its divisors is an integer number (10764215688492).

Almost surely, 2^{121311002202220} is an apocalyptic number.

121311002202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121311002202220 is an abundant number, since it is smaller than the sum of its proper divisors (137030174321588).

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

121311002202220 is a wasteful number, since it uses less digits than its factorization.

121311002202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85430283321 (or 85430283319 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121311002202220 its reverse (22202200113121), we get a palindrome (143513202315341).

The spelling of 121311002202220 in words is "one hundred twenty-one trillion, three hundred eleven billion, two million, two hundred two thousand, two hundred twenty".