2212123222402 has 4 divisors (see below), whose sum is σ = 3318184833606. Its totient is φ = 1106061611200.

The previous prime is 2212123222369. The next prime is 2212123222457. The reversal of 2212123222402 is 2042223212122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1438126209961 + 773997012441 = 1199219^2 + 879771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553030805599 + ... + 553030805602.

Almost surely, 2^{2212123222402} is an apocalyptic number.

2212123222402 is a deficient number, since it is larger than the sum of its proper divisors (1106061611204).

2212123222402 is a wasteful number, since it uses less digits than its factorization.

2212123222402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106061611203.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 2212123222402 its reverse (2042223212122), we get a palindrome (4254346434524).

The spelling of 2212123222402 in words is "two trillion, two hundred twelve billion, one hundred twenty-three million, two hundred twenty-two thousand, four hundred two".