121011202222220 has 24 divisors (see below), whose sum is σ = 259530408172224. Its totient is φ = 47374598316416.

The previous prime is 121011202222219. The next prime is 121011202222237. The reversal of 121011202222220 is 22222202110121.

121011202222220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121011202222220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121011202222192 and 121011202222201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64367659817 + ... + 64367661696.

It is an arithmetic number, because the mean of its divisors is an integer number (10813767007176).

Almost surely, 2^{121011202222220} is an apocalyptic number.

121011202222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011202222220 is an abundant number, since it is smaller than the sum of its proper divisors (138519205950004).

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

121011202222220 is a wasteful number, since it uses less digits than its factorization.

121011202222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128735321569 (or 128735321567 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121011202222220 its reverse (22222202110121), we get a palindrome (143233404332341).

The spelling of 121011202222220 in words is "one hundred twenty-one trillion, eleven billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty".