1201100021101 has 8 divisors (see below), whose sum is σ = 1239896734208. Its totient is φ = 1162306530000.

The previous prime is 1201100021063. The next prime is 1201100021111. The reversal of 1201100021101 is 1011200011021.

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 1201100021101 - 2¹³ = 1201100012909 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 (1201100021111) 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, 36225 + ... + 1550326.

It is an arithmetic number, because the mean of its divisors is an integer number (154987091776).

Almost surely, 2^{1201100021101} is an apocalyptic number.

It is an amenable number.

1201100021101 is a deficient number, since it is larger than the sum of its proper divisors (38796713107).

1201100021101 is a wasteful number, since it uses less digits than its factorization.

1201100021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611003.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201100021101 its reverse (1011200011021), we get a palindrome (2212300032122).

The spelling of 1201100021101 in words is "one trillion, two hundred one billion, one hundred million, twenty-one thousand, one hundred one".