2112212120002 has 4 divisors (see below), whose sum is σ = 3168318180006. Its totient is φ = 1056106060000.

The previous prime is 2112212119967. The next prime is 2112212120003. The reversal of 2112212120002 is 2000212122112.

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., 1821152949001 + 291059171001 = 1349501^2 + 539499^2 .

It is a super-2 number, since 2×2112212120002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112212120003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528053029999 + ... + 528053030002.

Almost surely, 2^{2112212120002} is an apocalyptic number.

2112212120002 is a deficient number, since it is larger than the sum of its proper divisors (1056106060004).

2112212120002 is a wasteful number, since it uses less digits than its factorization.

2112212120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056106060003.

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

Adding to 2112212120002 its reverse (2000212122112), we get a palindrome (4112424242114).

The spelling of 2112212120002 in words is "two trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty thousand, two".