212212103202 has 64 divisors (see below), whose sum is σ = 521699512320. Its totient is φ = 63400957200.

The previous prime is 212212103167. The next prime is 212212103239. The reversal of 212212103202 is 202301212212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2473738 + ... + 2558085.

It is an arithmetic number, because the mean of its divisors is an integer number (8151554880).

Almost surely, 2^212212103202 is an apocalyptic number.

212212103202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212212103202 is an abundant number, since it is smaller than the sum of its proper divisors (309487409118).

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

212212103202 is a wasteful number, since it uses less digits than its factorization.

212212103202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031916 (or 5031910 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212212103202 its reverse (202301212212), we get a palindrome (414513315414).

The spelling of 212212103202 in words is "two hundred twelve billion, two hundred twelve million, one hundred three thousand, two hundred two".