2212402123 has 8 divisors (see below), whose sum is σ = 2331993600. Its totient is φ = 2093125608.

The previous prime is 2212402111. The next prime is 2212402147. The reversal of 2212402123 is 3212042122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212402123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212402123.

It is not an unprimeable number, because it can be changed into a prime (2212402163) 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, 64243 + ... + 92476.

It is an arithmetic number, because the mean of its divisors is an integer number (291499200).

Almost surely, 2^2212402123 is an apocalyptic number.

2212402123 is a deficient number, since it is larger than the sum of its proper divisors (119591477).

2212402123 is a wasteful number, since it uses less digits than its factorization.

2212402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157481.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2212402123 is about 47036.1788732886. The cubic root of 2212402123 is about 1303.0308225260.

Adding to 2212402123 its reverse (3212042122), we get a palindrome (5424444245).

The spelling of 2212402123 in words is "two billion, two hundred twelve million, four hundred two thousand, one hundred twenty-three".