2120221601607 has 8 divisors (see below), whose sum is σ = 2827975031680. Its totient is φ = 1412974619640.

The previous prime is 2120221601581. The next prime is 2120221601651. The reversal of 2120221601607 is 7061061220212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120221601607 - 2³⁶ = 2051502124871 is a prime.

It is a super-3 number, since 3×2120221601607³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120221601807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126602257 + ... + 126619002.

It is an arithmetic number, because the mean of its divisors is an integer number (353496878960).

Almost surely, 2^{2120221601607} is an apocalyptic number.

2120221601607 is a deficient number, since it is larger than the sum of its proper divisors (707753430073).

2120221601607 is a wasteful number, since it uses less digits than its factorization.

2120221601607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253224053.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 2120221601607 its reverse (7061061220212), we get a palindrome (9181282821819).

The spelling of 2120221601607 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, six hundred one thousand, six hundred seven".