1045121034220 has 48 divisors (see below), whose sum is σ = 2223295925760. Its totient is φ = 412615509696.

The previous prime is 1045121034211. The next prime is 1045121034239. The reversal of 1045121034220 is 224301215401.

It is a super-2 number, since 2×1045121034220² (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 15 ways as a sum of consecutive naturals, for example, 4569919 + ... + 4793161.

It is an arithmetic number, because the mean of its divisors is an integer number (46318665120).

Almost surely, 2^{1045121034220} is an apocalyptic number.

1045121034220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045121034220 is an abundant number, since it is smaller than the sum of its proper divisors (1178174891540).

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

1045121034220 is a wasteful number, since it uses less digits than its factorization.

1045121034220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226294 (or 226292 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1045121034220 its reverse (224301215401), we get a palindrome (1269422249621).

The spelling of 1045121034220 in words is "one trillion, forty-five billion, one hundred twenty-one million, thirty-four thousand, two hundred twenty".