20110221001203 has 16 divisors (see below), whose sum is σ = 27539648468640. Its totient is φ = 13043838710016.

The previous prime is 20110221001069. The next prime is 20110221001217. The reversal of 20110221001203 is 30210012201102.

It is not a de Polignac number, because 20110221001203 - 2⁹ = 20110221000691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110221021203) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 2049850 + ... + 6665007.

It is an arithmetic number, because the mean of its divisors is an integer number (1721228029290).

Almost surely, 2^{20110221001203} is an apocalyptic number.

20110221001203 is a deficient number, since it is larger than the sum of its proper divisors (7429427467437).

20110221001203 is a wasteful number, since it uses less digits than its factorization.

20110221001203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735686.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20110221001203 its reverse (30210012201102), we get a palindrome (50320233202305).

The spelling of 20110221001203 in words is "twenty trillion, one hundred ten billion, two hundred twenty-one million, one thousand, two hundred three".