100012012212220 has 24 divisors (see below), whose sum is σ = 210026161843344. Its totient is φ = 40004626561536.

The previous prime is 100012012212209. The next prime is 100012012212263. The reversal of 100012012212220 is 22212210210001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100012012212194 and 100012012212203.

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, 6499029 + ... + 15564748.

It is an arithmetic number, because the mean of its divisors is an integer number (8751090076806).

Almost surely, 2^{100012012212220} is an apocalyptic number.

100012012212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012012212220 is an abundant number, since it is smaller than the sum of its proper divisors (110014149631124).

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

100012012212220 is a wasteful number, since it uses less digits than its factorization.

100012012212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290429 (or 22290427 counting only the distinct ones).

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

Adding to 100012012212220 its reverse (22212210210001), we get a palindrome (122224222422221).

The spelling of 100012012212220 in words is "one hundred trillion, twelve billion, twelve million, two hundred twelve thousand, two hundred twenty".