1002120001211 has 16 divisors (see below), whose sum is σ = 1156135833600. Its totient is φ = 850822882848.

The previous prime is 1002120001187. The next prime is 1002120001229. The reversal of 1002120001211 is 1121000212001.

It is a cyclic number.

It is not a de Polignac number, because 1002120001211 - 2¹⁸ = 1002119739067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002120001192 and 1002120001201.

It is not an unprimeable number, because it can be changed into a prime (1002120001261) 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, 2354270 + ... + 2747148.

It is an arithmetic number, because the mean of its divisors is an integer number (72258489600).

Almost surely, 2^{1002120001211} is an apocalyptic number.

1002120001211 is a deficient number, since it is larger than the sum of its proper divisors (154015832389).

1002120001211 is a wasteful number, since it uses less digits than its factorization.

1002120001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396338.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002120001211 its reverse (1121000212001), we get a palindrome (2123120213212).

The spelling of 1002120001211 in words is "one trillion, two billion, one hundred twenty million, one thousand, two hundred eleven".