1201222211201 has 8 divisors (see below), whose sum is σ = 1206648678144. Its totient is φ = 1195796100240.

The previous prime is 1201222211171. The next prime is 1201222211209. The reversal of 1201222211201 is 1021122221021.

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 1201222211201 - 2¹⁴ = 1201222194817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201222211201.

It is not an unprimeable number, because it can be changed into a prime (1201222211209) 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, 8571071 + ... + 8710091.

It is an arithmetic number, because the mean of its divisors is an integer number (150831084768).

Almost surely, 2^{1201222211201} is an apocalyptic number.

It is an amenable number.

1201222211201 is a deficient number, since it is larger than the sum of its proper divisors (5426466943).

1201222211201 is a wasteful number, since it uses less digits than its factorization.

1201222211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177991.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1201222211201 its reverse (1021122221021), we get a palindrome (2222344432222).

The spelling of 1201222211201 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred one".