121022220203 has 64 divisors (see below), whose sum is σ = 141419520000. Its totient is φ = 102921477120.

The previous prime is 121022220199. The next prime is 121022220217. The reversal of 121022220203 is 302022220121.

It is a cyclic number.

It is not a de Polignac number, because 121022220203 - 2² = 121022220199 is a prime.

It is a super-2 number, since 2×121022220203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022220283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68800838 + ... + 68802596.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680000).

Almost surely, 2^121022220203 is an apocalyptic number.

121022220203 is a deficient number, since it is larger than the sum of its proper divisors (20397299797).

121022220203 is a wasteful number, since it uses less digits than its factorization.

121022220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 121022220203 its reverse (302022220121), we get a palindrome (423044440324).

The spelling of 121022220203 in words is "one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred three".