21120022212002 has 8 divisors (see below), whose sum is σ = 36205752363456. Its totient is φ = 9051438090852.

The previous prime is 21120022211987. The next prime is 21120022212019. The reversal of 21120022212002 is 20021222002112.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754286507558 + ... + 754286507585.

It is an arithmetic number, because the mean of its divisors is an integer number (4525719045432).

Almost surely, 2^{21120022212002} is an apocalyptic number.

21120022212002 is a deficient number, since it is larger than the sum of its proper divisors (15085730151454).

21120022212002 is a wasteful number, since it uses less digits than its factorization.

21120022212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508573015152.

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

Adding to 21120022212002 its reverse (20021222002112), we get a palindrome (41141244214114).

The spelling of 21120022212002 in words is "twenty-one trillion, one hundred twenty billion, twenty-two million, two hundred twelve thousand, two".