121102200201020 has 48 divisors (see below), whose sum is σ = 267712036774560. Its totient is φ = 45889228134144.

The previous prime is 121102200200911. The next prime is 121102200201053. The reversal of 121102200201020 is 20102002201121.

It is a junction number, because it is equal to n+sod(n) for n = 121102200200986 and 121102200201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799862 + ... + 15583458.

It is an arithmetic number, because the mean of its divisors is an integer number (5577334099470).

Almost surely, 2^{121102200201020} is an apocalyptic number.

121102200201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102200201020 is an abundant number, since it is smaller than the sum of its proper divisors (146609836573540).

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

121102200201020 is a wasteful number, since it uses less digits than its factorization.

121102200201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14805182 (or 14805180 counting only the distinct ones).

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

Adding to 121102200201020 its reverse (20102002201121), we get a palindrome (141204202402141).

The spelling of 121102200201020 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred million, two hundred one thousand, twenty".