121122222202 has 16 divisors (see below), whose sum is σ = 189592724160. Its totient is φ = 57924928512.

The previous prime is 121122222197. The next prime is 121122222209. The reversal of 121122222202 is 202222221121.

It is a super-2 number, since 2×121122222202² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121122222202.

It is not an unprimeable number, because it can be changed into a prime (121122222209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965449 + ... + 1083667.

It is an arithmetic number, because the mean of its divisors is an integer number (11849545260).

Almost surely, 2^121122222202 is an apocalyptic number.

121122222202 is a deficient number, since it is larger than the sum of its proper divisors (68470501958).

121122222202 is a wasteful number, since it uses less digits than its factorization.

121122222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140517.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121122222202 its reverse (202222221121), we get a palindrome (323344443323).

The spelling of 121122222202 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred two".