1212202212 has 96 divisors (see below), whose sum is σ = 3203988480. Its totient is φ = 353907840.

The previous prime is 1212202193. The next prime is 1212202213. The reversal of 1212202212 is 2122022121.

It is a junction number, because it is equal to n+sod(n) for n = 1212202191 and 1212202200.

It is not an unprimeable number, because it can be changed into a prime (1212202213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468739 + ... + 471317.

It is an arithmetic number, because the mean of its divisors is an integer number (33374880).

Almost surely, 2^1212202212 is an apocalyptic number.

1212202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601994240).

1212202212 is an abundant number, since it is smaller than the sum of its proper divisors (1991786268).

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

1212202212 is a wasteful number, since it uses less digits than its factorization.

1212202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1212202212 is about 34816.6944439015. The cubic root of 1212202212 is about 1066.2483138490.

Adding to 1212202212 its reverse (2122022121), we get a palindrome (3334224333).

The spelling of 1212202212 in words is "one billion, two hundred twelve million, two hundred two thousand, two hundred twelve".