101201220101100 has 288 divisors, whose sum is σ = 340746617376256. Its totient is φ = 22710888345600.

The previous prime is 101201220101087. The next prime is 101201220101141. The reversal of 101201220101100 is 1101022102101.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 69348564 + ... + 70792836.

Almost surely, 2^{101201220101100} is an apocalyptic number.

101201220101100 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 101201220101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170373308688128).

101201220101100 is an abundant number, since it is smaller than the sum of its proper divisors (239545397275156).

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

101201220101100 is a wasteful number, since it uses less digits than its factorization.

101201220101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444905 (or 1444898 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101201220101100 its reverse (1101022102101), we get a palindrome (102302242203201).

The spelling of 101201220101100 in words is "one hundred one trillion, two hundred one billion, two hundred twenty million, one hundred one thousand, one hundred".