2021215011432 has 16 divisors (see below), whose sum is σ = 5053037528640. Its totient is φ = 673738337136.

The previous prime is 2021215011377. The next prime is 2021215011433. The reversal of 2021215011432 is 2341105121202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 84217292143 = 2021215011432 / (2 + 0 + 2 + 1 + 2 + 1 + 5 + 0 + 1 + 1 + 4 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (2021215011433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42108646048 + ... + 42108646095.

It is an arithmetic number, because the mean of its divisors is an integer number (315814845540).

Almost surely, 2^{2021215011432} is an apocalyptic number.

It is an amenable number.

2021215011432 is an abundant number, since it is smaller than the sum of its proper divisors (3031822517208).

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

2021215011432 is a wasteful number, since it uses less digits than its factorization.

2021215011432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84217292152 (or 84217292148 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 2021215011432 in words is "two trillion, twenty-one billion, two hundred fifteen million, eleven thousand, four hundred thirty-two".