101032011220 has 144 divisors (see below), whose sum is σ = 263019778560. Its totient is φ = 32428171776.

The previous prime is 101032011209. The next prime is 101032011221. The reversal of 101032011220 is 22110230101.

It is a self number, because there is not a number n which added to its sum of digits gives 101032011220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101032011221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1011696 + ... + 1107064.

It is an arithmetic number, because the mean of its divisors is an integer number (1826526240).

Almost surely, 2^101032011220 is an apocalyptic number.

101032011220 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 101032011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131509889280).

101032011220 is an abundant number, since it is smaller than the sum of its proper divisors (161987767340).

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

101032011220 is a wasteful number, since it uses less digits than its factorization.

101032011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95462 (or 95453 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101032011220 its reverse (22110230101), we get a palindrome (123142241321).

The spelling of 101032011220 in words is "one hundred one billion, thirty-two million, eleven thousand, two hundred twenty".