212010222100220 has 24 divisors (see below), whose sum is σ = 445242021379008. Its totient is φ = 84800173608000.

The previous prime is 212010222100217. The next prime is 212010222100267. The reversal of 212010222100220 is 22001222010212.

It is a happy number.

It is a super-2 number, since 2×212010222100220² (a number of 29 digits) contains 22 as substring.

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, 244257956 + ... + 245124395.

It is an arithmetic number, because the mean of its divisors is an integer number (18551750890792).

Almost surely, 2^{212010222100220} is an apocalyptic number.

212010222100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010222100220 is an abundant number, since it is smaller than the sum of its proper divisors (233231799278788).

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

212010222100220 is a wasteful number, since it uses less digits than its factorization.

212010222100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489404021 (or 489404019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212010222100220 its reverse (22001222010212), we get a palindrome (234011444110432).

The spelling of 212010222100220 in words is "two hundred twelve trillion, ten billion, two hundred twenty-two million, one hundred thousand, two hundred twenty".