1040121202120 has 256 divisors, whose sum is σ = 3177500659200. Its totient is φ = 295892213760.

The previous prime is 1040121202093. The next prime is 1040121202147. The reversal of 1040121202120 is 212021210401.

It is an interprime number because it is at equal distance from previous prime (1040121202093) and next prime (1040121202147).

It is a junction number, because it is equal to n+sod(n) for n = 1040121202094 and 1040121202103.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3417622 + ... + 3709498.

It is an arithmetic number, because the mean of its divisors is an integer number (12412111950).

Almost surely, 2^{1040121202120} is an apocalyptic number.

1040121202120 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 1040121202120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588750329600).

1040121202120 is an abundant number, since it is smaller than the sum of its proper divisors (2137379457080).

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

1040121202120 is a wasteful number, since it uses less digits than its factorization.

1040121202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292008 (or 292004 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1040121202120 its reverse (212021210401), we get a palindrome (1252142412521).

The spelling of 1040121202120 in words is "one trillion, forty billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty".