121000220100210 has 48 divisors (see below), whose sum is σ = 319200580637568. Its totient is φ = 29333386690080.

The previous prime is 121000220100209. The next prime is 121000220100251. The reversal of 121000220100210 is 12001022000121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16666693354 + ... + 16666700613.

It is an arithmetic number, because the mean of its divisors is an integer number (6650012096616).

Almost surely, 2^{121000220100210} is an apocalyptic number.

121000220100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000220100210 is an abundant number, since it is smaller than the sum of its proper divisors (198200360537358).

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

121000220100210 is a wasteful number, since it uses less digits than its factorization.

121000220100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333393999 (or 33333393988 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121000220100210 its reverse (12001022000121), we get a palindrome (133001242100331).

The spelling of 121000220100210 in words is "one hundred twenty-one trillion, two hundred twenty million, one hundred thousand, two hundred ten".