121010012101 has 8 divisors (see below), whose sum is σ = 132021976608. Its totient is φ = 109999890000.

The previous prime is 121010012077. The next prime is 121010012113. The reversal of 121010012101 is 101210010121.

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

It is not a de Polignac number, because 121010012101 - 2¹³ = 121010003909 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 (121010012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321435 + ... + 587656.

It is an arithmetic number, because the mean of its divisors is an integer number (16502747076).

Almost surely, 2^121010012101 is an apocalyptic number.

121010012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121010012101 is a deficient number, since it is larger than the sum of its proper divisors (11011964507).

121010012101 is a wasteful number, since it uses less digits than its factorization.

121010012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921203.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121010012101 its reverse (101210010121), we get a palindrome (222220022222).

It can be divided in two parts, 1210100 and 12101, that multiplied together give a square (14643420100 = 121010²).

The spelling of 121010012101 in words is "one hundred twenty-one billion, ten million, twelve thousand, one hundred one".