1211102132201 has 8 divisors (see below), whose sum is σ = 1308134058504. Its totient is φ = 1114623095040.

The previous prime is 1211102132179. The next prime is 1211102132203. The reversal of 1211102132201 is 1022312011121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5989986025 + 1205112146176 = 77395^2 + 1097776^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1211102132201 is a prime.

It is a super-2 number, since 2×1211102132201² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211102132201.

It is not an unprimeable number, because it can be changed into a prime (1211102132203) 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, 138217730 + ... + 138226491.

It is an arithmetic number, because the mean of its divisors is an integer number (163516757313).

Almost surely, 2^{1211102132201} is an apocalyptic number.

It is an amenable number.

1211102132201 is a deficient number, since it is larger than the sum of its proper divisors (97031926303).

1211102132201 is a wasteful number, since it uses less digits than its factorization.

1211102132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276444571.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1211102132201 its reverse (1022312011121), we get a palindrome (2233414143322).

The spelling of 1211102132201 in words is "one trillion, two hundred eleven billion, one hundred two million, one hundred thirty-two thousand, two hundred one".