121201120012220 has 12 divisors (see below), whose sum is σ = 254522352025704. Its totient is φ = 48480448004880.

The previous prime is 121201120012201. The next prime is 121201120012223. The reversal of 121201120012220 is 22210021102121.

It is a super-2 number, since 2×121201120012220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201120012223) 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, 3030028000286 + ... + 3030028000325.

It is an arithmetic number, because the mean of its divisors is an integer number (21210196002142).

Almost surely, 2^{121201120012220} is an apocalyptic number.

121201120012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201120012220 is an abundant number, since it is smaller than the sum of its proper divisors (133321232013484).

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

121201120012220 is a wasteful number, since it uses less digits than its factorization.

121201120012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060056000620 (or 6060056000618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121201120012220 its reverse (22210021102121), we get a palindrome (143411141114341).

The spelling of 121201120012220 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, twelve thousand, two hundred twenty".