1001122111210 has 32 divisors (see below), whose sum is σ = 1945057403520. Its totient is φ = 368803050048.

The previous prime is 1001122111193. The next prime is 1001122111237. The reversal of 1001122111210 is 121112211001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8713932 + ... + 8828071.

It is an arithmetic number, because the mean of its divisors is an integer number (60783043860).

Almost surely, 2^{1001122111210} is an apocalyptic number.

1001122111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001122111210 is a deficient number, since it is larger than the sum of its proper divisors (943935292310).

1001122111210 is a wasteful number, since it uses less digits than its factorization.

1001122111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542462.

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

Adding to 1001122111210 its reverse (121112211001), we get a palindrome (1122234322211).

The spelling of 1001122111210 in words is "one trillion, one billion, one hundred twenty-two million, one hundred eleven thousand, two hundred ten".