2101212032212 has 12 divisors (see below), whose sum is σ = 3683080738260. Its totient is φ = 1048903249856.

The previous prime is 2101212032191. The next prime is 2101212032233. The reversal of 2101212032212 is 2122302121012.

It is an interprime number because it is at equal distance from previous prime (2101212032191) and next prime (2101212032233).

It can be written as a sum of positive squares in 2 ways, for example, as 772296470416 + 1328915561796 = 878804^2 + 1152786^2 .

It is a super-3 number, since 3×2101212032212³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2101212032212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425688787 + ... + 425693722.

It is an arithmetic number, because the mean of its divisors is an integer number (306923394855).

Almost surely, 2^{2101212032212} is an apocalyptic number.

It is an amenable number.

2101212032212 is a deficient number, since it is larger than the sum of its proper divisors (1581868706048).

2101212032212 is a wasteful number, since it uses less digits than its factorization.

2101212032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851383130 (or 851383128 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2101212032212 its reverse (2122302121012), we get a palindrome (4223514153224).

The spelling of 2101212032212 in words is "two trillion, one hundred one billion, two hundred twelve million, thirty-two thousand, two hundred twelve".