121011202220 has 24 divisors (see below), whose sum is σ = 254141790000. Its totient is φ = 48401001792.

The previous prime is 121011202219. The next prime is 121011202241. The reversal of 121011202220 is 22202110121.

It is a super-2 number, since 2×121011202220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121011202195 and 121011202204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77531 + ... + 498029.

It is an arithmetic number, because the mean of its divisors is an integer number (10589241250).

Almost surely, 2^121011202220 is an apocalyptic number.

121011202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011202220 is an abundant number, since it is smaller than the sum of its proper divisors (133130587780).

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

121011202220 is a wasteful number, since it uses less digits than its factorization.

121011202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434897 (or 434895 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121011202220 its reverse (22202110121), we get a palindrome (143213312341).

The spelling of 121011202220 in words is "one hundred twenty-one billion, eleven million, two hundred two thousand, two hundred twenty".