1211002212201 has 8 divisors (see below), whose sum is σ = 1619763212544. Its totient is φ = 804788010000.

The previous prime is 1211002212169. The next prime is 1211002212223. The reversal of 1211002212201 is 1022122001121.

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

It is not a de Polignac number, because 1211002212201 - 2⁵ = 1211002212169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211002212701) 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, 636698425 + ... + 636700326.

It is an arithmetic number, because the mean of its divisors is an integer number (202470401568).

Almost surely, 2^{1211002212201} is an apocalyptic number.

It is an amenable number.

1211002212201 is a deficient number, since it is larger than the sum of its proper divisors (408761000343).

1211002212201 is a wasteful number, since it uses less digits than its factorization.

1211002212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273399071.

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

Adding to 1211002212201 its reverse (1022122001121), we get a palindrome (2233124213322).

The spelling of 1211002212201 in words is "one trillion, two hundred eleven billion, two million, two hundred twelve thousand, two hundred one".