100220010021200 has 60 divisors (see below), whose sum is σ = 243260827511100. Its totient is φ = 39674725601280.

The previous prime is 100220010021199. The next prime is 100220010021251. The reversal of 100220010021200 is 2120010022001.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8452346773264 + 91767663247936 = 2907292^2 + 9579544^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1291456175 + ... + 1291533774.

It is an arithmetic number, because the mean of its divisors is an integer number (4054347125185).

Almost surely, 2^{100220010021200} is an apocalyptic number.

100220010021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100220010021200 is an abundant number, since it is smaller than the sum of its proper divisors (143040817489900).

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

100220010021200 is a wasteful number, since it uses less digits than its factorization.

100220010021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582990064 (or 2582990053 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100220010021200 its reverse (2120010022001), we get a palindrome (102340020043201).

The spelling of 100220010021200 in words is "one hundred trillion, two hundred twenty billion, ten million, twenty-one thousand, two hundred".