1021133122040 has 64 divisors (see below), whose sum is σ = 2341215653760. Its totient is φ = 400692464640.

The previous prime is 1021133122021. The next prime is 1021133122073. The reversal of 1021133122040 is 402213311201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 18036257 + ... + 18092783.

It is an arithmetic number, because the mean of its divisors is an integer number (36581494590).

Almost surely, 2^{1021133122040} is an apocalyptic number.

1021133122040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021133122040 is an abundant number, since it is smaller than the sum of its proper divisors (1320082531720).

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

1021133122040 is a wasteful number, since it uses less digits than its factorization.

1021133122040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65112 (or 65108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1021133122040 its reverse (402213311201), we get a palindrome (1423346433241).

The spelling of 1021133122040 in words is "one trillion, twenty-one billion, one hundred thirty-three million, one hundred twenty-two thousand, forty".