101112212221221 has 8 divisors (see below), whose sum is σ = 134968274265024. Its totient is φ = 67332145829120.

The previous prime is 101112212221171. The next prime is 101112212221243. The reversal of 101112212221221 is 122122212211101.

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

It is a cyclic number.

It is not a de Polignac number, because 101112212221221 - 2³⁰ = 101111138479397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112212221921) 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, 18998909820 + ... + 18998915141.

It is an arithmetic number, because the mean of its divisors is an integer number (16871034283128).

Almost surely, 2^{101112212221221} is an apocalyptic number.

It is an amenable number.

101112212221221 is a deficient number, since it is larger than the sum of its proper divisors (33856062043803).

101112212221221 is an equidigital number, since it uses as much as digits as its factorization.

101112212221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37997825851.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 101112212221221 its reverse (122122212211101), we get a palindrome (223234424432322).

The spelling of 101112212221221 in words is "one hundred one trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".