121001212012210 has 16 divisors (see below), whose sum is σ = 217802318155776. Its totient is φ = 48400454464048.

The previous prime is 121001212012207. The next prime is 121001212012273. The reversal of 121001212012210 is 12210212100121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20162127 + ... + 25465933.

It is an arithmetic number, because the mean of its divisors is an integer number (13612644884736).

Almost surely, 2^{121001212012210} is an apocalyptic number.

121001212012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001212012210 is a deficient number, since it is larger than the sum of its proper divisors (96801106143566).

121001212012210 is a wasteful number, since it uses less digits than its factorization.

121001212012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585217.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121001212012210 its reverse (12210212100121), we get a palindrome (133211424112331).

The spelling of 121001212012210 in words is "one hundred twenty-one trillion, one billion, two hundred twelve million, twelve thousand, two hundred ten".