20010300132221 has 32 divisors (see below), whose sum is σ = 24376926412800. Its totient is φ = 16052955215616.

The previous prime is 20010300132217. The next prime is 20010300132343. The reversal of 20010300132221 is 12223100301002.

It is not a de Polignac number, because 20010300132221 - 2² = 20010300132217 is a prime.

It is a super-2 number, since 2×20010300132221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20010300132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010300132721) 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, 30694565 + ... + 31339701.

It is an arithmetic number, because the mean of its divisors is an integer number (761778950400).

Almost surely, 2^{20010300132221} is an apocalyptic number.

It is an amenable number.

20010300132221 is a deficient number, since it is larger than the sum of its proper divisors (4366626280579).

20010300132221 is a wasteful number, since it uses less digits than its factorization.

20010300132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649313.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20010300132221 its reverse (12223100301002), we get a palindrome (32233400433223).

The spelling of 20010300132221 in words is "twenty trillion, ten billion, three hundred million, one hundred thirty-two thousand, two hundred twenty-one".