20121020220010 has 64 divisors (see below), whose sum is σ = 36694144005120. Its totient is φ = 7943264524800.

The previous prime is 20121020219959. The next prime is 20121020220011. The reversal of 20121020220010 is 1002202012102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20121020220011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032216060 + ... + 2032225960.

It is an arithmetic number, because the mean of its divisors is an integer number (573346000080).

Almost surely, 2^{20121020220010} is an apocalyptic number.

20121020220010 is a deficient number, since it is larger than the sum of its proper divisors (16573123785110).

20121020220010 is a wasteful number, since it uses less digits than its factorization.

20121020220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18511.

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

Adding to 20121020220010 its reverse (1002202012102), we get a palindrome (21123222232112).

The spelling of 20121020220010 in words is "twenty trillion, one hundred twenty-one billion, twenty million, two hundred twenty thousand, ten".