212211121023120 has 80 divisors (see below), whose sum is σ = 658518304845312. Its totient is φ = 56532528645120.

The previous prime is 212211121023089. The next prime is 212211121023133. The reversal of 212211121023120 is 21320121112212.

It is a tau number, because it is divible by the number of its divisors (80).

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, 445883757 + ... + 446359436.

Almost surely, 2^{212211121023120} is an apocalyptic number.

212211121023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211121023120 is an abundant number, since it is smaller than the sum of its proper divisors (446307183822192).

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

212211121023120 is a wasteful number, since it uses less digits than its factorization.

212211121023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892244200 (or 892244194 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 212211121023120 its reverse (21320121112212), we get a palindrome (233531242135332).

The spelling of 212211121023120 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty-one million, twenty-three thousand, one hundred twenty".