121222100101 has 8 divisors (see below), whose sum is σ = 124091485760. Its totient is φ = 118354999392.

The previous prime is 121222100099. The next prime is 121222100147. The reversal of 121222100101 is 101001222121.

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 121222100101 - 2¹ = 121222100099 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 (121222100171) 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, 463641 + ... + 676318.

It is an arithmetic number, because the mean of its divisors is an integer number (15511435720).

Almost surely, 2^121222100101 is an apocalyptic number.

It is an amenable number.

121222100101 is a deficient number, since it is larger than the sum of its proper divisors (2869385659).

121222100101 is a wasteful number, since it uses less digits than its factorization.

121222100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142475.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121222100101 its reverse (101001222121), we get a palindrome (222223322222).

The spelling of 121222100101 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, one hundred one".