2211022112212 has 6 divisors (see below), whose sum is σ = 3869288696378. Its totient is φ = 1105511056104.

The previous prime is 2211022112137. The next prime is 2211022112249. The reversal of 2211022112212 is 2122112201122.

It can be written as a sum of positive squares in only one way, i.e., 2153749964356 + 57272147856 = 1467566^2 + 239316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2211022112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276377764023 + ... + 276377764030.

Almost surely, 2^{2211022112212} is an apocalyptic number.

It is an amenable number.

2211022112212 is a deficient number, since it is larger than the sum of its proper divisors (1658266584166).

2211022112212 is a wasteful number, since it uses less digits than its factorization.

2211022112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552755528057 (or 552755528055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2211022112212 its reverse (2122112201122), we get a palindrome (4333134313334).

The spelling of 2211022112212 in words is "two trillion, two hundred eleven billion, twenty-two million, one hundred twelve thousand, two hundred twelve".