121001222101 has 8 divisors (see below), whose sum is σ = 122148497664. Its totient is φ = 119854250880.

The previous prime is 121001222047. The next prime is 121001222113. The reversal of 121001222101 is 101222100121.

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 121001222101 - 2¹³ = 121001213909 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 (121001222171) 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, 766876 + ... + 911098.

It is an arithmetic number, because the mean of its divisors is an integer number (15268562208).

Almost surely, 2^121001222101 is an apocalyptic number.

It is an amenable number.

121001222101 is a deficient number, since it is larger than the sum of its proper divisors (1147275563).

121001222101 is a wasteful number, since it uses less digits than its factorization.

121001222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152171.

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

Adding to 121001222101 its reverse (101222100121), we get a palindrome (222223322222).

The spelling of 121001222101 in words is "one hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred one".