1002001211211 has 32 divisors (see below), whose sum is σ = 1793792383488. Its totient is φ = 480480099840.

The previous prime is 1002001211191. The next prime is 1002001211213. The reversal of 1002001211211 is 1121121002001.

It is not a de Polignac number, because 1002001211211 - 2⁶ = 1002001211147 is a prime.

It is a super-2 number, since 2×1002001211211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002001211213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166830366 + ... + 166836371.

It is an arithmetic number, because the mean of its divisors is an integer number (56056011984).

Almost surely, 2^{1002001211211} is an apocalyptic number.

1002001211211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002001211211 is a deficient number, since it is larger than the sum of its proper divisors (791791172277).

1002001211211 is a wasteful number, since it uses less digits than its factorization.

1002001211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333666771.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1002001211211 its reverse (1121121002001), we get a palindrome (2123122213212).

The spelling of 1002001211211 in words is "one trillion, two billion, one million, two hundred eleven thousand, two hundred eleven".