20214121677 has 8 divisors (see below), whose sum is σ = 28537583616. Its totient is φ = 12683370432.

The previous prime is 20214121673. The next prime is 20214121687. The reversal of 20214121677 is 77612141202.

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

It is not a de Polignac number, because 20214121677 - 2² = 20214121673 is a prime.

It is a super-2 number, since 2×20214121677² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214121673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198177613 + ... + 198177714.

It is an arithmetic number, because the mean of its divisors is an integer number (3567197952).

Almost surely, 2^20214121677 is an apocalyptic number.

It is an amenable number.

20214121677 is a deficient number, since it is larger than the sum of its proper divisors (8323461939).

20214121677 is a wasteful number, since it uses less digits than its factorization.

20214121677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396355347.

The product of its (nonzero) digits is 9408, while the sum is 33.

Adding to 20214121677 its reverse (77612141202), we get a palindrome (97826262879).

The spelling of 20214121677 in words is "twenty billion, two hundred fourteen million, one hundred twenty-one thousand, six hundred seventy-seven".