2171421251114 has 32 divisors (see below), whose sum is σ = 3547773172800. Its totient is φ = 992823713280.

The previous prime is 2171421251081. The next prime is 2171421251159. The reversal of 2171421251114 is 4111521241712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3713549 + ... + 4258319.

It is an arithmetic number, because the mean of its divisors is an integer number (110867911650).

Almost surely, 2^{2171421251114} is an apocalyptic number.

2171421251114 is a deficient number, since it is larger than the sum of its proper divisors (1376351921686).

2171421251114 is a wasteful number, since it uses less digits than its factorization.

2171421251114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548438.

The product of its digits is 4480, while the sum is 32.

Adding to 2171421251114 its reverse (4111521241712), we get a palindrome (6282942492826).

The spelling of 2171421251114 in words is "two trillion, one hundred seventy-one billion, four hundred twenty-one million, two hundred fifty-one thousand, one hundred fourteen".