121022210221212 has 24 divisors (see below), whose sum is σ = 282426813244800. Its totient is φ = 40334785874416.

The previous prime is 121022210221189. The next prime is 121022210221303. The reversal of 121022210221212 is 212122012220121.

It is a congruent number.

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, 743773512 + ... + 743936207.

It is an arithmetic number, because the mean of its divisors is an integer number (11767783885200).

Almost surely, 2^{121022210221212} is an apocalyptic number.

121022210221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121022210221212 is an abundant number, since it is smaller than the sum of its proper divisors (161404603023588).

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

121022210221212 is a wasteful number, since it uses less digits than its factorization.

121022210221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487716505 (or 1487716503 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121022210221212 its reverse (212122012220121), we get a palindrome (333144222441333).

The spelling of 121022210221212 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred ten million, two hundred twenty-one thousand, two hundred twelve".