121201120211020 has 48 divisors (see below), whose sum is σ = 254867536818720. Its totient is φ = 48414720347136.

The previous prime is 121201120210987. The next prime is 121201120211021. The reversal of 121201120211020 is 20112021102121.

121201120211020 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-3 number, since 3×121201120211020³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 121201120210985 and 121201120211003.

It is not an unprimeable number, because it can be changed into a prime (121201120211021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89228874 + ... + 90577006.

It is an arithmetic number, because the mean of its divisors is an integer number (5309740350390).

Almost surely, 2^{121201120211020} is an apocalyptic number.

121201120211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201120211020 is an abundant number, since it is smaller than the sum of its proper divisors (133666416607700).

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

121201120211020 is a wasteful number, since it uses less digits than its factorization.

121201120211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354234 (or 1354232 counting only the distinct ones).

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

Adding to 121201120211020 its reverse (20112021102121), we get a palindrome (141313141313141).

The spelling of 121201120211020 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, two hundred eleven thousand, twenty".