100220212120220 has 24 divisors (see below), whose sum is σ = 211722699623904. Its totient is φ = 39848036434496.

The previous prime is 100220212120163. The next prime is 100220212120267. The reversal of 100220212120220 is 22021212022001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15003022427 + ... + 15003029106.

It is an arithmetic number, because the mean of its divisors is an integer number (8821779150996).

Almost surely, 2^{100220212120220} is an apocalyptic number.

100220212120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100220212120220 is an abundant number, since it is smaller than the sum of its proper divisors (111502487503684).

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

100220212120220 is a wasteful number, since it uses less digits than its factorization.

100220212120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30006051709 (or 30006051707 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100220212120220 its reverse (22021212022001), we get a palindrome (122241424142221).

The spelling of 100220212120220 in words is "one hundred trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty".