1001211011222 has 16 divisors (see below), whose sum is σ = 1591465352400. Its totient is φ = 470770956288.

The previous prime is 1001211011221. The next prime is 1001211011237. The reversal of 1001211011222 is 2221101121001.

It is a junction number, because it is equal to n+sod(n) for n = 1001211011197 and 1001211011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001211011221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12056972 + ... + 12139727.

It is an arithmetic number, because the mean of its divisors is an integer number (99466584525).

Almost surely, 2^{1001211011222} is an apocalyptic number.

1001211011222 is a deficient number, since it is larger than the sum of its proper divisors (590254341178).

1001211011222 is a wasteful number, since it uses less digits than its factorization.

1001211011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24197935.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001211011222 its reverse (2221101121001), we get a palindrome (3222312132223).

The spelling of 1001211011222 in words is "one trillion, one billion, two hundred eleven million, eleven thousand, two hundred twenty-two".