100220021202021 has 16 divisors (see below), whose sum is σ = 152721312419328. Its totient is φ = 57266674930800.

The previous prime is 100220021201987. The next prime is 100220021202047. The reversal of 100220021202021 is 120202120022001.

It is not a de Polignac number, because 100220021202021 - 2⁷ = 100220021201893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220021202421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78880315 + ... + 80140776.

It is an arithmetic number, because the mean of its divisors is an integer number (9545082026208).

Almost surely, 2^{100220021202021} is an apocalyptic number.

It is an amenable number.

100220021202021 is a deficient number, since it is larger than the sum of its proper divisors (52501291217307).

100220021202021 is a wasteful number, since it uses less digits than its factorization.

100220021202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159051112.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100220021202021 its reverse (120202120022001), we get a palindrome (220422141224022).

The spelling of 100220021202021 in words is "one hundred trillion, two hundred twenty billion, twenty-one million, two hundred two thousand, twenty-one".