2211404552212 has 24 divisors (see below), whose sum is σ = 3924234511400. Its totient is φ = 1090204448256.

The previous prime is 2211404552173. The next prime is 2211404552213. The reversal of 2211404552212 is 2122554041122.

It can be written as a sum of positive squares in 4 ways, for example, as 580665336196 + 1630739216016 = 762014^2 + 1277004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211404552213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310137 + ... + 2125792.

Almost surely, 2^{2211404552212} is an apocalyptic number.

It is an amenable number.

2211404552212 is a deficient number, since it is larger than the sum of its proper divisors (1712829959188).

2211404552212 is a wasteful number, since it uses less digits than its factorization.

2211404552212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439115 (or 2439113 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 2211404552212 its reverse (2122554041122), we get a palindrome (4333958593334).

The spelling of 2211404552212 in words is "two trillion, two hundred eleven billion, four hundred four million, five hundred fifty-two thousand, two hundred twelve".