121102200210220 has 24 divisors (see below), whose sum is σ = 258625037739600. Its totient is φ = 47619848217792.

The previous prime is 121102200210151. The next prime is 121102200210227. The reversal of 121102200210220 is 22012002201121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121102200210194 and 121102200210203.

It is not an unprimeable number, because it can be changed into a prime (121102200210227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51314490435 + ... + 51314492794.

It is an arithmetic number, because the mean of its divisors is an integer number (10776043239150).

Almost surely, 2^{121102200210220} is an apocalyptic number.

121102200210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102200210220 is an abundant number, since it is smaller than the sum of its proper divisors (137522837529380).

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

121102200210220 is a wasteful number, since it uses less digits than its factorization.

121102200210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102628983297 (or 102628983295 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121102200210220 its reverse (22012002201121), we get a palindrome (143114202411341).

The spelling of 121102200210220 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred million, two hundred ten thousand, two hundred twenty".