101123202220 has 96 divisors (see below), whose sum is σ = 229202265600. Its totient is φ = 37336157184.

The previous prime is 101123202197. The next prime is 101123202221. The reversal of 101123202220 is 22202321101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101123202194 and 101123202203.

It is not an unprimeable number, because it can be changed into a prime (101123202221) 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, 8800599 + ... + 8812081.

It is an arithmetic number, because the mean of its divisors is an integer number (2387523600).

Almost surely, 2^101123202220 is an apocalyptic number.

101123202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101123202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114601132800).

101123202220 is an abundant number, since it is smaller than the sum of its proper divisors (128079063380).

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

101123202220 is a wasteful number, since it uses less digits than its factorization.

101123202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007 (or 12005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 101123202220 its reverse (22202321101), we get a palindrome (123325523321).

It can be divided in two parts, 101 and 123202220, that added together give a palindrome (123202321).

The spelling of 101123202220 in words is "one hundred one billion, one hundred twenty-three million, two hundred two thousand, two hundred twenty".