1201121210010 has 64 divisors (see below), whose sum is σ = 3035071710720. Its totient is φ = 303375124800.

The previous prime is 1201121209999. The next prime is 1201121210017. The reversal of 1201121210010 is 100121211021.

It is a super-2 number, since 2×1201121210010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201121210017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2419585 + ... + 2873435.

It is an arithmetic number, because the mean of its divisors is an integer number (47422995480).

Almost surely, 2^{1201121210010} is an apocalyptic number.

1201121210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201121210010 is an abundant number, since it is smaller than the sum of its proper divisors (1833950500710).

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

1201121210010 is a wasteful number, since it uses less digits than its factorization.

1201121210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458523.

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

Adding to 1201121210010 its reverse (100121211021), we get a palindrome (1301242421031).

The spelling of 1201121210010 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred ten thousand, ten".