20101033232220 has 96 divisors (see below), whose sum is σ = 56917178660160. Its totient is φ = 5299871385600.

The previous prime is 20101033232213. The next prime is 20101033232227. The reversal of 20101033232220 is 2223233010102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20101033232213) and next prime (20101033232227).

It is a super-2 number, since 2×20101033232220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101033232227) 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, 267501774 + ... + 267576906.

It is an arithmetic number, because the mean of its divisors is an integer number (592887277710).

Almost surely, 2^{20101033232220} is an apocalyptic number.

20101033232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101033232220 is an abundant number, since it is smaller than the sum of its proper divisors (36816145427940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101033232220 is a wasteful number, since it uses less digits than its factorization.

20101033232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125335 (or 125333 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20101033232220 its reverse (2223233010102), we get a palindrome (22324266242322).

The spelling of 20101033232220 in words is "twenty trillion, one hundred one billion, thirty-three million, two hundred thirty-two thousand, two hundred twenty".