22012111022002 has 4 divisors (see below), whose sum is σ = 33018166533006. Its totient is φ = 11006055511000.

The previous prime is 22012111021951. The next prime is 22012111022003. The reversal of 22012111022002 is 20022011121022.

It is a happy number.

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., 16233332541721 + 5778778480281 = 4029061^2 + 2403909^2 .

It is not an unprimeable number, because it can be changed into a prime (22012111022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503027755499 + ... + 5503027755502.

Almost surely, 2^{22012111022002} is an apocalyptic number.

22012111022002 is a deficient number, since it is larger than the sum of its proper divisors (11006055511004).

22012111022002 is a wasteful number, since it uses less digits than its factorization.

22012111022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006055511003.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22012111022002 its reverse (20022011121022), we get a palindrome (42034122143024).

The spelling of 22012111022002 in words is "twenty-two trillion, twelve billion, one hundred eleven million, twenty-two thousand, two".