20211222120002 has 4 divisors (see below), whose sum is σ = 30316833180006. Its totient is φ = 10105611060000.

The previous prime is 20211222119987. The next prime is 20211222120017. The reversal of 20211222120002 is 20002122211202.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (20211222119987) and next prime (20211222120017).

It can be written as a sum of positive squares in only one way, i.e., 10330818077281 + 9880404042721 = 3214159^2 + 3143311^2 .

It is an unprimeable number.

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, 5052805529999 + ... + 5052805530002.

Almost surely, 2^{20211222120002} is an apocalyptic number.

20211222120002 is a deficient number, since it is larger than the sum of its proper divisors (10105611060004).

20211222120002 is a wasteful number, since it uses less digits than its factorization.

20211222120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105611060003.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20211222120002 its reverse (20002122211202), we get a palindrome (40213344331204).

The spelling of 20211222120002 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty thousand, two".