2111212021222 has 8 divisors (see below), whose sum is σ = 3167667739296. Its totient is φ = 1055322774792.

The previous prime is 2111212021213. The next prime is 2111212021267. The reversal of 2111212021222 is 2221202121112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2111212021222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141608593 + ... + 141623500.

It is an arithmetic number, because the mean of its divisors is an integer number (395958467412).

Almost surely, 2^{2111212021222} is an apocalyptic number.

2111212021222 is a deficient number, since it is larger than the sum of its proper divisors (1056455718074).

2111212021222 is a wasteful number, since it uses less digits than its factorization.

2111212021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283235822.

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

Adding to 2111212021222 its reverse (2221202121112), we get a palindrome (4332414142334).

The spelling of 2111212021222 in words is "two trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred twenty-two".