101220011190 has 192 divisors, whose sum is σ = 284650329600. Its totient is φ = 24876398592.

The previous prime is 101220011147. The next prime is 101220011237. The reversal of 101220011190 is 91110022101.

It is a happy number.

It is a super-3 number, since 3×101220011190³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9781159 + ... + 9791501.

It is an arithmetic number, because the mean of its divisors is an integer number (1482553800).

Almost surely, 2^101220011190 is an apocalyptic number.

101220011190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101220011190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142325164800).

101220011190 is an abundant number, since it is smaller than the sum of its proper divisors (183430318410).

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

101220011190 is a wasteful number, since it uses less digits than its factorization.

101220011190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531 (or 10528 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 101220011190 its reverse (91110022101), we get a palindrome (192330033291).

The spelling of 101220011190 in words is "one hundred one billion, two hundred twenty million, eleven thousand, one hundred ninety".