1211102202201 has 16 divisors (see below), whose sum is σ = 1688233629696. Its totient is φ = 770820366096.

The previous prime is 1211102202197. The next prime is 1211102202229. The reversal of 1211102202201 is 1022022011121.

It is not a de Polignac number, because 1211102202201 - 2² = 1211102202197 is a prime.

It is a super-2 number, since 2×1211102202201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211102200201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16744225 + ... + 16816398.

It is an arithmetic number, because the mean of its divisors is an integer number (105514601856).

Almost surely, 2^{1211102202201} is an apocalyptic number.

It is an amenable number.

1211102202201 is a deficient number, since it is larger than the sum of its proper divisors (477131427495).

1211102202201 is a wasteful number, since it uses less digits than its factorization.

1211102202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33561172.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211102202201 its reverse (1022022011121), we get a palindrome (2233124213322).

The spelling of 1211102202201 in words is "one trillion, two hundred eleven billion, one hundred two million, two hundred two thousand, two hundred one".