212213203100 has 36 divisors (see below), whose sum is σ = 469191391704. Its totient is φ = 83283670080.

The previous prime is 212213203099. The next prime is 212213203117. The reversal of 212213203100 is 1302312212.

It is a super-2 number, since 2×212213203100² (a number of 23 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 11 ways as a sum of consecutive naturals, for example, 20014814 + ... + 20025413.

It is an arithmetic number, because the mean of its divisors is an integer number (13033094214).

Almost surely, 2^212213203100 is an apocalyptic number.

212213203100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213203100 is an abundant number, since it is smaller than the sum of its proper divisors (256978188604).

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

212213203100 is a wasteful number, since it uses less digits than its factorization.

212213203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40040294 (or 40040287 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212213203100 its reverse (1302312212), we get a palindrome (213515515312).

The spelling of 212213203100 in words is "two hundred twelve billion, two hundred thirteen million, two hundred three thousand, one hundred".