2120477223651 has 4 divisors (see below), whose sum is σ = 2827302964872. Its totient is φ = 1413651482432.

The previous prime is 2120477223617. The next prime is 2120477223653. The reversal of 2120477223651 is 1563227740212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120477223651 - 2⁶ = 2120477223587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120477223653) 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, 353412870606 + ... + 353412870611.

It is an arithmetic number, because the mean of its divisors is an integer number (706825741218).

Almost surely, 2^{2120477223651} is an apocalyptic number.

2120477223651 is a deficient number, since it is larger than the sum of its proper divisors (706825741221).

2120477223651 is an equidigital number, since it uses as much as digits as its factorization.

2120477223651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706825741220.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 2120477223651 in words is "two trillion, one hundred twenty billion, four hundred seventy-seven million, two hundred twenty-three thousand, six hundred fifty-one".