1001111222210 has 32 divisors (see below), whose sum is σ = 1969680628800. Its totient is φ = 363325216960.

The previous prime is 1001111222179. The next prime is 1001111222227. The reversal of 1001111222210 is 122221111001.

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, 8884100 + ... + 8996079.

It is an arithmetic number, because the mean of its divisors is an integer number (61552519650).

Almost surely, 2^{1001111222210} is an apocalyptic number.

1001111222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001111222210 is a deficient number, since it is larger than the sum of its proper divisors (968569406590).

1001111222210 is a wasteful number, since it uses less digits than its factorization.

1001111222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17880706.

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

Adding to 1001111222210 its reverse (122221111001), we get a palindrome (1123332333211).

The spelling of 1001111222210 in words is "one trillion, one billion, one hundred eleven million, two hundred twenty-two thousand, two hundred ten".