121222101221210 has 32 divisors (see below), whose sum is σ = 250564343198400. Its totient is φ = 41760723864960.

The previous prime is 121222101221087. The next prime is 121222101221233. The reversal of 121222101221210 is 12122101222121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29000500595 + ... + 29000504774.

It is an arithmetic number, because the mean of its divisors is an integer number (7830135724950).

Almost surely, 2^{121222101221210} is an apocalyptic number.

121222101221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222101221210 is an abundant number, since it is smaller than the sum of its proper divisors (129342241977190).

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

121222101221210 is a wasteful number, since it uses less digits than its factorization.

121222101221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58001005406.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121222101221210 its reverse (12122101222121), we get a palindrome (133344202443331).

The spelling of 121222101221210 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, two hundred ten".