101120212021 has 4 divisors (see below), whose sum is σ = 101599454944. Its totient is φ = 100640969100.

The previous prime is 101120212007. The next prime is 101120212033. The reversal of 101120212021 is 120212021101.

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 101120212021 - 2¹¹ = 101120209973 is a prime.

It is a super-5 number, since 5×101120212021⁵ (a number of 56 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101120211992 and 101120212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120212001) 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 3 ways as a sum of consecutive naturals, for example, 239621145 + ... + 239621566.

It is an arithmetic number, because the mean of its divisors is an integer number (25399863736).

Almost surely, 2^101120212021 is an apocalyptic number.

It is an amenable number.

101120212021 is a deficient number, since it is larger than the sum of its proper divisors (479242923).

101120212021 is an equidigital number, since it uses as much as digits as its factorization.

101120212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479242922.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101120212021 its reverse (120212021101), we get a palindrome (221332233122).

It can be divided in two parts, 101 and 120212021, that multiplied together give a palindrome (12141414121).

The spelling of 101120212021 in words is "one hundred one billion, one hundred twenty million, two hundred twelve thousand, twenty-one".