1212102211120 has 160 divisors (see below), whose sum is σ = 2902148393472. Its totient is φ = 470600073216.

The previous prime is 1212102211087. The next prime is 1212102211127. The reversal of 1212102211120 is 211122012121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1212102211094 and 1212102211103.

It is not an unprimeable number, because it can be changed into a prime (1212102211127) 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, 293698497 + ... + 293702623.

Almost surely, 2^{1212102211120} is an apocalyptic number.

1212102211120 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 1212102211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451074196736).

1212102211120 is an abundant number, since it is smaller than the sum of its proper divisors (1690046182352).

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

1212102211120 is a wasteful number, since it uses less digits than its factorization.

1212102211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212102211120 its reverse (211122012121), we get a palindrome (1423224223241).

The spelling of 1212102211120 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, one hundred twenty".