1212211210210 has 256 divisors, whose sum is σ = 3034141286400. Its totient is φ = 343553253120.

The previous prime is 1212211210207. The next prime is 1212211210213. The reversal of 1212211210210 is 120121122121.

It is an interprime number because it is at equal distance from previous prime (1212211210207) and next prime (1212211210213).

It is not an unprimeable number, because it can be changed into a prime (1212211210213) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32844387 + ... + 32881273.

It is an arithmetic number, because the mean of its divisors is an integer number (11852114400).

Almost surely, 2^{1212211210210} is an apocalyptic number.

1212211210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212211210210 is an abundant number, since it is smaller than the sum of its proper divisors (1821930076190).

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

1212211210210 is a wasteful number, since it uses less digits than its factorization.

1212211210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37006 (or 36992 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212211210210 its reverse (120121122121), we get a palindrome (1332332332331).

The spelling of 1212211210210 in words is "one trillion, two hundred twelve billion, two hundred eleven million, two hundred ten thousand, two hundred ten".