1001212120110 has 64 divisors (see below), whose sum is σ = 2468019470400. Its totient is φ = 259756388352.

The previous prime is 1001212120091. The next prime is 1001212120123. The reversal of 1001212120110 is 110212121001.

It is a super-2 number, since 2×1001212120110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27941886 + ... + 27977694.

It is an arithmetic number, because the mean of its divisors is an integer number (38562804225).

Almost surely, 2^{1001212120110} is an apocalyptic number.

1001212120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001212120110 is an abundant number, since it is smaller than the sum of its proper divisors (1466807350290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001212120110 is a wasteful number, since it uses less digits than its factorization.

1001212120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61045.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001212120110 its reverse (110212121001), we get a palindrome (1111424241111).

The spelling of 1001212120110 in words is "one trillion, one billion, two hundred twelve million, one hundred twenty thousand, one hundred ten".