1210211012212 has 24 divisors (see below), whose sum is σ = 2150849817032. Its totient is φ = 595713139200.

The previous prime is 1210211012209. The next prime is 1210211012237. The reversal of 1210211012212 is 2122101120121.

It can be written as a sum of positive squares in 4 ways, for example, as 659770596 + 1209551241616 = 25686^2 + 1099796^2 .

It is a super-3 number, since 3×1210211012212³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3672489 + ... + 3988432.

Almost surely, 2^{1210211012212} is an apocalyptic number.

It is an amenable number.

1210211012212 is a deficient number, since it is larger than the sum of its proper divisors (940638804820).

1210211012212 is a wasteful number, since it uses less digits than its factorization.

1210211012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661539 (or 7661537 counting only the distinct ones).

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

Adding to 1210211012212 its reverse (2122101120121), we get a palindrome (3332312132333).

The spelling of 1210211012212 in words is "one trillion, two hundred ten billion, two hundred eleven million, twelve thousand, two hundred twelve".