1210100211120 has 160 divisors (see below), whose sum is σ = 3976970332608. Its totient is φ = 303329542144.

The previous prime is 1210100211101. The next prime is 1210100211121. The reversal of 1210100211120 is 211120010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210100211096 and 1210100211105.

It is not an unprimeable number, because it can be changed into a prime (1210100211121) 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, 3065692 + ... + 3437828.

Almost surely, 2^{1210100211120} is an apocalyptic number.

1210100211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210100211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988485166304).

1210100211120 is an abundant number, since it is smaller than the sum of its proper divisors (2766870121488).

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

1210100211120 is a wasteful number, since it uses less digits than its factorization.

1210100211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372967 (or 372961 counting only the distinct ones).

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

Adding to 1210100211120 its reverse (211120010121), we get a palindrome (1421220221241).

The spelling of 1210100211120 in words is "one trillion, two hundred ten billion, one hundred million, two hundred eleven thousand, one hundred twenty".