100021111020202 has 4 divisors (see below), whose sum is σ = 150031666530306. Its totient is φ = 50010555510100.

The previous prime is 100021111020199. The next prime is 100021111020239. The reversal of 100021111020202 is 202020111120001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82934552999281 + 17086558020921 = 9106841^2 + 4133589^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005277755049 + ... + 25005277755052.

Almost surely, 2^{100021111020202} is an apocalyptic number.

100021111020202 is a deficient number, since it is larger than the sum of its proper divisors (50010555510104).

100021111020202 is an equidigital number, since it uses as much as digits as its factorization.

100021111020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010555510103.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100021111020202 its reverse (202020111120001), we get a palindrome (302041222140203).

The spelling of 100021111020202 in words is "one hundred trillion, twenty-one billion, one hundred eleven million, twenty thousand, two hundred two".