10101232220 has 24 divisors (see below), whose sum is σ = 21529196304. Its totient is φ = 3980186496.

The previous prime is 10101232157. The next prime is 10101232241. The reversal of 10101232220 is 2223210101.

It is a happy number.

It is a super-2 number, since 2×10101232220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10101232195 and 10101232204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3767777 + ... + 3770456.

It is an arithmetic number, because the mean of its divisors is an integer number (897049846).

Almost surely, 2^10101232220 is an apocalyptic number.

10101232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101232220 is an abundant number, since it is smaller than the sum of its proper divisors (11427964084).

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

10101232220 is a wasteful number, since it uses less digits than its factorization.

10101232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538309 (or 7538307 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10101232220 its reverse (2223210101), we get a palindrome (12324442321).

The spelling of 10101232220 in words is "ten billion, one hundred one million, two hundred thirty-two thousand, two hundred twenty".