2120220221001 has 16 divisors (see below), whose sum is σ = 2876140587840. Its totient is φ = 1388935753920.

The previous prime is 2120220220999. The next prime is 2120220221017. The reversal of 2120220221001 is 1001220220212.

It is not a de Polignac number, because 2120220221001 - 2¹ = 2120220220999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120220221701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5533231 + ... + 5903988.

It is an arithmetic number, because the mean of its divisors is an integer number (179758786740).

Almost surely, 2^{2120220221001} is an apocalyptic number.

It is an amenable number.

2120220221001 is a deficient number, since it is larger than the sum of its proper divisors (755920366839).

2120220221001 is a wasteful number, since it uses less digits than its factorization.

2120220221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11438296.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2120220221001 its reverse (1001220220212), we get a palindrome (3121440441213).

The spelling of 2120220221001 in words is "two trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, one".