100212023021 has 8 divisors (see below), whose sum is σ = 109417036224. Its totient is φ = 91022814720.

The previous prime is 100212022997. The next prime is 100212023033. The reversal of 100212023021 is 120320212001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212023021 is a prime.

It is a super-2 number, since 2×100212023021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212022987 and 100212023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212023071) 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, 3937961 + ... + 3963326.

It is an arithmetic number, because the mean of its divisors is an integer number (13677129528).

Almost surely, 2^100212023021 is an apocalyptic number.

100212023021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100212023021 is a deficient number, since it is larger than the sum of its proper divisors (9205013203).

100212023021 is a wasteful number, since it uses less digits than its factorization.

100212023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902451.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100212023021 its reverse (120320212001), we get a palindrome (220532235022).

The spelling of 100212023021 in words is "one hundred billion, two hundred twelve million, twenty-three thousand, twenty-one".