21120002220010 has 16 divisors (see below), whose sum is σ = 38042203887072. Its totient is φ = 8442178690000.

The previous prime is 21120002219999. The next prime is 21120002220019. The reversal of 21120002220010 is 1002220002112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21120002220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727759516 + ... + 727788535.

It is an arithmetic number, because the mean of its divisors is an integer number (2377637742942).

Almost surely, 2^{21120002220010} is an apocalyptic number.

21120002220010 is a deficient number, since it is larger than the sum of its proper divisors (16922201667062).

21120002220010 is a wasteful number, since it uses less digits than its factorization.

21120002220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455549509.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21120002220010 its reverse (1002220002112), we get a palindrome (22122222222122).

The spelling of 21120002220010 in words is "twenty-one trillion, one hundred twenty billion, two million, two hundred twenty thousand, ten".