1211120012010 has 16 divisors (see below), whose sum is σ = 2906688028896. Its totient is φ = 322965336528.

The previous prime is 1211120012009. The next prime is 1211120012023. The reversal of 1211120012010 is 102100211121.

It is a super-2 number, since 2×1211120012010² (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, 20185333504 + ... + 20185333563.

It is an arithmetic number, because the mean of its divisors is an integer number (181668001806).

Almost surely, 2^{1211120012010} is an apocalyptic number.

1211120012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211120012010 is an abundant number, since it is smaller than the sum of its proper divisors (1695568016886).

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

1211120012010 is a wasteful number, since it uses less digits than its factorization.

1211120012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40370667077.

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

Adding to 1211120012010 its reverse (102100211121), we get a palindrome (1313220223131).

The spelling of 1211120012010 in words is "one trillion, two hundred eleven billion, one hundred twenty million, twelve thousand, ten".