120102021101 has 4 divisors (see below), whose sum is σ = 120131042400. Its totient is φ = 120072999804.

The previous prime is 120102021047. The next prime is 120102021121. The reversal of 120102021101 is 101120201021.

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 120102021101 - 2¹⁸ = 120101758957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102021121) 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, 14504441 + ... + 14512718.

It is an arithmetic number, because the mean of its divisors is an integer number (30032760600).

Almost surely, 2^120102021101 is an apocalyptic number.

It is an amenable number.

120102021101 is a deficient number, since it is larger than the sum of its proper divisors (29021299).

120102021101 is an equidigital number, since it uses as much as digits as its factorization.

120102021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29021298.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120102021101 its reverse (101120201021), we get a palindrome (221222222122).

The spelling of 120102021101 in words is "one hundred twenty billion, one hundred two million, twenty-one thousand, one hundred one".