1001201122210 has 16 divisors (see below), whose sum is σ = 1802362399992. Its totient is φ = 400435920000.

The previous prime is 1001201122189. The next prime is 1001201122249. The reversal of 1001201122210 is 122211021001.

It can be written as a sum of positive squares in 4 ways, for example, as 877967126001 + 123233996209 = 936999^2 + 351047^2 .

It is a super-2 number, since 2×1001201122210² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5471601 + ... + 5651620.

Almost surely, 2^{1001201122210} is an apocalyptic number.

1001201122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001201122210 is a deficient number, since it is larger than the sum of its proper divisors (801161277782).

1001201122210 is a wasteful number, since it uses less digits than its factorization.

1001201122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132229.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001201122210 its reverse (122211021001), we get a palindrome (1123412143211).

The spelling of 1001201122210 in words is "one trillion, one billion, two hundred one million, one hundred twenty-two thousand, two hundred ten".