11211021001201 has 16 divisors (see below), whose sum is σ = 12820859520768. Its totient is φ = 9603249278400.

The previous prime is 11211021001171. The next prime is 11211021001207. The reversal of 11211021001201 is 10210012011211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11211021001201 - 2¹¹ = 11211020999153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211021001207) 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, 286041516 + ... + 286080706.

It is an arithmetic number, because the mean of its divisors is an integer number (801303720048).

Almost surely, 2^{11211021001201} is an apocalyptic number.

It is an amenable number.

11211021001201 is a deficient number, since it is larger than the sum of its proper divisors (1609838519567).

11211021001201 is a wasteful number, since it uses less digits than its factorization.

11211021001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64512.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211021001201 its reverse (10210012011211), we get a palindrome (21421033012412).

The spelling of 11211021001201 in words is "eleven trillion, two hundred eleven billion, twenty-one million, one thousand, two hundred one".