101220201120220 has 96 divisors (see below), whose sum is σ = 277004423783808. Its totient is φ = 30150141345792.

The previous prime is 101220201120193. The next prime is 101220201120229. The reversal of 101220201120220 is 22021102022101.

It is a happy number.

It is a super-2 number, since 2×101220201120220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101220201120194 and 101220201120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220201120229) 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, 1635718917 + ... + 1635780796.

It is an arithmetic number, because the mean of its divisors is an integer number (2885462747748).

Almost surely, 2^{101220201120220} is an apocalyptic number.

101220201120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220201120220 is an abundant number, since it is smaller than the sum of its proper divisors (175784222663588).

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

101220201120220 is a wasteful number, since it uses less digits than its factorization.

101220201120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271499759 (or 3271499757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101220201120220 its reverse (22021102022101), we get a palindrome (123241303142321).

The spelling of 101220201120220 in words is "one hundred one trillion, two hundred twenty billion, two hundred one million, one hundred twenty thousand, two hundred twenty".