2120040221043 has 32 divisors (see below), whose sum is σ = 2853648875520. Its totient is φ = 1399945397760.

The previous prime is 2120040220967. The next prime is 2120040221051. The reversal of 2120040221043 is 3401220400212.

It is not a de Polignac number, because 2120040221043 - 2⁹ = 2120040220531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120040221443) 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, 406993023 + ... + 406998231.

It is an arithmetic number, because the mean of its divisors is an integer number (89176527360).

Almost surely, 2^{2120040221043} is an apocalyptic number.

2120040221043 is a deficient number, since it is larger than the sum of its proper divisors (733608654477).

2120040221043 is a wasteful number, since it uses less digits than its factorization.

2120040221043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2120040221043 its reverse (3401220400212), we get a palindrome (5521260621255).

The spelling of 2120040221043 in words is "two trillion, one hundred twenty billion, forty million, two hundred twenty-one thousand, forty-three".