2126197801 has 8 divisors (see below), whose sum is σ = 2616858944. Its totient is φ = 1682266320.

The previous prime is 2126197783. The next prime is 2126197811. The reversal of 2126197801 is 1087916212.

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

It is not a de Polignac number, because 2126197801 - 2⁷ = 2126197673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126197811) 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, 11682315 + ... + 11682496.

It is an arithmetic number, because the mean of its divisors is an integer number (327107368).

Almost surely, 2^2126197801 is an apocalyptic number.

It is an amenable number.

2126197801 is a deficient number, since it is larger than the sum of its proper divisors (490661143).

2126197801 is a wasteful number, since it uses less digits than its factorization.

2126197801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23364831.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 2126197801 is about 46110.7124321453. The cubic root of 2126197801 is about 1285.8823094594.

The spelling of 2126197801 in words is "two billion, one hundred twenty-six million, one hundred ninety-seven thousand, eight hundred one".