2221111010212 has 12 divisors (see below), whose sum is σ = 4115588048460. Its totient is φ = 1045228710656.

The previous prime is 2221111010207. The next prime is 2221111010233. The reversal of 2221111010212 is 2120101111222.

It can be written as a sum of positive squares in 2 ways, for example, as 628684066816 + 1592426943396 = 792896^2 + 1261914^2 .

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, 16331698537 + ... + 16331698672.

It is an arithmetic number, because the mean of its divisors is an integer number (342965670705).

Almost surely, 2^{2221111010212} is an apocalyptic number.

It is an amenable number.

2221111010212 is a deficient number, since it is larger than the sum of its proper divisors (1894477038248).

2221111010212 is a wasteful number, since it uses less digits than its factorization.

2221111010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32663397230 (or 32663397228 counting only the distinct ones).

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

Adding to 2221111010212 its reverse (2120101111222), we get a palindrome (4341212121434).

It can be divided in two parts, 2221111010 and 212, that added together give a palindrome (2221111222).

The spelling of 2221111010212 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, ten thousand, two hundred twelve".