121420212101 has 8 divisors (see below), whose sum is σ = 128549543520. Its totient is φ = 114364760112.

The previous prime is 121420212037. The next prime is 121420212113. The reversal of 121420212101 is 101212024121.

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 121420212101 - 2⁶ = 121420212037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121420212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121420214101) 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, 18466475 + ... + 18473048.

It is an arithmetic number, because the mean of its divisors is an integer number (16068692940).

Almost surely, 2^121420212101 is an apocalyptic number.

It is an amenable number.

121420212101 is a deficient number, since it is larger than the sum of its proper divisors (7129331419).

121420212101 is a wasteful number, since it uses less digits than its factorization.

121420212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36939715.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121420212101 its reverse (101212024121), we get a palindrome (222632236222).

The spelling of 121420212101 in words is "one hundred twenty-one billion, four hundred twenty million, two hundred twelve thousand, one hundred one".