2011221032212 has 36 divisors (see below), whose sum is σ = 4150357325940. Its totient is φ = 850144305024.

The previous prime is 2011221032209. The next prime is 2011221032239. The reversal of 2011221032212 is 2122301221102.

It can be written as a sum of positive squares in 2 ways, for example, as 1536023124496 + 475197907716 = 1239364^2 + 689346^2 .

It is a super-2 number, since 2×2011221032212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011221032212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70268787 + ... + 70297402.

Almost surely, 2^{2011221032212} is an apocalyptic number.

It is an amenable number.

2011221032212 is an abundant number, since it is smaller than the sum of its proper divisors (2139136293728).

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

2011221032212 is a wasteful number, since it uses less digits than its factorization.

2011221032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140566280 (or 140566271 counting only the distinct ones).

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

Adding to 2011221032212 its reverse (2122301221102), we get a palindrome (4133522253314).

The spelling of 2011221032212 in words is "two trillion, eleven billion, two hundred twenty-one million, thirty-two thousand, two hundred twelve".