100212112020021 has 8 divisors (see below), whose sum is σ = 133738620628704. Its totient is φ = 66746839045680.

The previous prime is 100212112020019. The next prime is 100212112020023. The reversal of 100212112020021 is 120020211212001.

It is an interprime number because it is at equal distance from previous prime (100212112020019) and next prime (100212112020023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100212112020021 - 2¹ = 100212112020019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212112020023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15308904766 + ... + 15308911311.

It is an arithmetic number, because the mean of its divisors is an integer number (16717327578588).

Almost surely, 2^{100212112020021} is an apocalyptic number.

It is an amenable number.

100212112020021 is a deficient number, since it is larger than the sum of its proper divisors (33526508608683).

100212112020021 is a wasteful number, since it uses less digits than its factorization.

100212112020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30617817171.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100212112020021 its reverse (120020211212001), we get a palindrome (220232323232022).

The spelling of 100212112020021 in words is "one hundred trillion, two hundred twelve billion, one hundred twelve million, twenty thousand, twenty-one".