1201102101021 has 8 divisors (see below), whose sum is σ = 1601556914880. Its totient is φ = 800691010592.

The previous prime is 1201102100963. The next prime is 1201102101049. The reversal of 1201102101021 is 1201012011021.

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 1201102101021 - 2³⁹ = 651346287133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201102100988 and 1201102101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201102106021) 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, 10866705 + ... + 10976678.

It is an arithmetic number, because the mean of its divisors is an integer number (200194614360).

Almost surely, 2^{1201102101021} is an apocalyptic number.

It is an amenable number.

1201102101021 is a deficient number, since it is larger than the sum of its proper divisors (400454813859).

1201102101021 is a wasteful number, since it uses less digits than its factorization.

1201102101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21861715.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201102101021 its reverse (1201012011021), we get a palindrome (2402114112042).

It can be divided in two parts, 1201 and 102101021, that multiplied together give a palindrome (122623326221).

The spelling of 1201102101021 in words is "one trillion, two hundred one billion, one hundred two million, one hundred one thousand, twenty-one".