121110021001 has 8 divisors (see below), whose sum is σ = 130452309504. Its totient is φ = 112107452160.

The previous prime is 121110020981. The next prime is 121110021037. The reversal of 121110021001 is 100120011121.

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 121110021001 - 2¹⁹ = 121109496713 is a prime.

It is a super-2 number, since 2×121110021001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110021091) 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, 84929176 + ... + 84930601.

It is an arithmetic number, because the mean of its divisors is an integer number (16306538688).

Almost surely, 2^121110021001 is an apocalyptic number.

It is an amenable number.

121110021001 is a deficient number, since it is larger than the sum of its proper divisors (9342288503).

121110021001 is a wasteful number, since it uses less digits than its factorization.

121110021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169859831.

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

Adding to 121110021001 its reverse (100120011121), we get a palindrome (221230032122).

The spelling of 121110021001 in words is "one hundred twenty-one billion, one hundred ten million, twenty-one thousand, one".