20214134220 has 48 divisors (see below), whose sum is σ = 64685230848. Its totient is φ = 4620373440.

The previous prime is 20214134209. The next prime is 20214134221. The reversal of 20214134220 is 2243141202.

It is a super-2 number, since 2×20214134220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20214134221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24064026 + ... + 24064865.

It is an arithmetic number, because the mean of its divisors is an integer number (1347608976).

Almost surely, 2^20214134220 is an apocalyptic number.

20214134220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20214134220 is an abundant number, since it is smaller than the sum of its proper divisors (44471096628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20214134220 is a wasteful number, since it uses less digits than its factorization.

20214134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48128910 (or 48128908 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20214134220 its reverse (2243141202), we get a palindrome (22457275422).

The spelling of 20214134220 in words is "twenty billion, two hundred fourteen million, one hundred thirty-four thousand, two hundred twenty".