100102012202021 has 4 divisors (see below), whose sum is σ = 100218545395200. Its totient is φ = 99985479008844.

The previous prime is 100102012201969. The next prime is 100102012202041. The reversal of 100102012202021 is 120202210201001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100102012202021 - 2¹⁰ = 100102012200997 is a prime.

It is a super-2 number, since 2×100102012202021² (a number of 29 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 = 100102012201987 and 100102012202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102012202041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58266595301 + ... + 58266597018.

It is an arithmetic number, because the mean of its divisors is an integer number (25054636348800).

Almost surely, 2^{100102012202021} is an apocalyptic number.

It is an amenable number.

100102012202021 is a deficient number, since it is larger than the sum of its proper divisors (116533193179).

100102012202021 is an equidigital number, since it uses as much as digits as its factorization.

100102012202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116533193178.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100102012202021 its reverse (120202210201001), we get a palindrome (220304222403022).

The spelling of 100102012202021 in words is "one hundred trillion, one hundred two billion, twelve million, two hundred two thousand, twenty-one".