121112220021202 has 32 divisors (see below), whose sum is σ = 191063232921600. Its totient is φ = 57466056363408.

The previous prime is 121112220021193. The next prime is 121112220021217. The reversal of 121112220021202 is 202120022211121.

It is a self number, because there is not a number n which added to its sum of digits gives 121112220021202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 365888449 + ... + 366219307.

It is an arithmetic number, because the mean of its divisors is an integer number (5970726028800).

Almost surely, 2^{121112220021202} is an apocalyptic number.

121112220021202 is a deficient number, since it is larger than the sum of its proper divisors (69951012900398).

121112220021202 is a wasteful number, since it uses less digits than its factorization.

121112220021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393670.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121112220021202 its reverse (202120022211121), we get a palindrome (323232242232323).

The spelling of 121112220021202 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty million, twenty-one thousand, two hundred two".