121142420101 has 8 divisors (see below), whose sum is σ = 121479275520. Its totient is φ = 120805672512.

The previous prime is 121142420081. The next prime is 121142420117. The reversal of 121142420101 is 101024241121.

It is a happy number.

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 121142420101 - 2⁷ = 121142419973 is a prime.

It is a super-3 number, since 3×121142420101³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142480101) 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, 2566845 + ... + 2613613.

It is an arithmetic number, because the mean of its divisors is an integer number (15184909440).

Almost surely, 2^121142420101 is an apocalyptic number.

It is an amenable number.

121142420101 is a deficient number, since it is larger than the sum of its proper divisors (336855419).

121142420101 is an equidigital number, since it uses as much as digits as its factorization.

121142420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53915.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121142420101 its reverse (101024241121), we get a palindrome (222166661222).

The spelling of 121142420101 in words is "one hundred twenty-one billion, one hundred forty-two million, four hundred twenty thousand, one hundred one".