121001110212220 has 24 divisors (see below), whose sum is σ = 290402664509664. Its totient is φ = 41486094929856.

The previous prime is 121001110212209. The next prime is 121001110212247. The reversal of 121001110212220 is 22212011100121.

121001110212220 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 2×121001110212220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121001110212194 and 121001110212203.

It is a congruent number.

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, 432146822047 + ... + 432146822326.

It is an arithmetic number, because the mean of its divisors is an integer number (12100111021236).

Almost surely, 2^{121001110212220} is an apocalyptic number.

121001110212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001110212220 is an abundant number, since it is smaller than the sum of its proper divisors (169401554297444).

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

121001110212220 is a wasteful number, since it uses less digits than its factorization.

121001110212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864293644389 (or 864293644387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121001110212220 its reverse (22212011100121), we get a palindrome (143213121312341).

The spelling of 121001110212220 in words is "one hundred twenty-one trillion, one billion, one hundred ten million, two hundred twelve thousand, two hundred twenty".