121201010211020 has 12 divisors (see below), whose sum is σ = 254522121443184. Its totient is φ = 48480404084400.

The previous prime is 121201010210933. The next prime is 121201010211023. The reversal of 121201010211020 is 20112010102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201010210986 and 121201010211004.

It is not an unprimeable number, because it can be changed into a prime (121201010211023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030025255256 + ... + 3030025255295.

It is an arithmetic number, because the mean of its divisors is an integer number (21210176786932).

Almost surely, 2^{121201010211020} is an apocalyptic number.

121201010211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201010211020 is an abundant number, since it is smaller than the sum of its proper divisors (133321111232164).

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

121201010211020 is a wasteful number, since it uses less digits than its factorization.

121201010211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060050510560 (or 6060050510558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121201010211020 its reverse (20112010102121), we get a palindrome (141313020313141).

The spelling of 121201010211020 in words is "one hundred twenty-one trillion, two hundred one billion, ten million, two hundred eleven thousand, twenty".