121220120022101 has 8 divisors (see below), whose sum is σ = 121964263696704. Its totient is φ = 120475981981440.

The previous prime is 121220120022059. The next prime is 121220120022119. The reversal of 121220120022101 is 101220021022121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121220120022101 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 121220120022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220120022121) 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, 46805621 + ... + 49327541.

It is an arithmetic number, because the mean of its divisors is an integer number (15245532962088).

Almost surely, 2^{121220120022101} is an apocalyptic number.

It is an amenable number.

121220120022101 is a deficient number, since it is larger than the sum of its proper divisors (744143674603).

121220120022101 is a wasteful number, since it uses less digits than its factorization.

121220120022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816971.

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

Adding to 121220120022101 its reverse (101220021022121), we get a palindrome (222440141044222).

The spelling of 121220120022101 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, twenty-two thousand, one hundred one".