100002221211220 has 48 divisors (see below), whose sum is σ = 222358848643008. Its totient is φ = 37647731059200.

The previous prime is 100002221211209. The next prime is 100002221211253. The reversal of 100002221211220 is 22112122200001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100002221211194 and 100002221211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101401495 + ... + 102382945.

It is an arithmetic number, because the mean of its divisors is an integer number (4632476013396).

Almost surely, 2^{100002221211220} is an apocalyptic number.

100002221211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100002221211220 is an abundant number, since it is smaller than the sum of its proper divisors (122356627431788).

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

100002221211220 is a wasteful number, since it uses less digits than its factorization.

100002221211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281160 (or 1281158 counting only the distinct ones).

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

Adding to 100002221211220 its reverse (22112122200001), we get a palindrome (122114343411221).

The spelling of 100002221211220 in words is "one hundred trillion, two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty".