121322210122220 has 48 divisors (see below), whose sum is σ = 256203694656000. Its totient is φ = 48257072230080.

The previous prime is 121322210122219. The next prime is 121322210122249. The reversal of 121322210122220 is 22221012223121.

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, 296215775 + ... + 296625065.

It is an arithmetic number, because the mean of its divisors is an integer number (5337576972000).

Almost surely, 2^{121322210122220} is an apocalyptic number.

121322210122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121322210122220 is an abundant number, since it is smaller than the sum of its proper divisors (134881484533780).

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

121322210122220 is a wasteful number, since it uses less digits than its factorization.

121322210122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492278 (or 492276 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121322210122220 its reverse (22221012223121), we get a palindrome (143543222345341).

The spelling of 121322210122220 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty".