20220021270 has 48 divisors (see below), whose sum is σ = 52648298352. Its totient is φ = 5384185920.

The previous prime is 20220021167. The next prime is 20220021271. The reversal of 20220021270 is 7212002202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220021271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100377 + ... + 224756.

It is an arithmetic number, because the mean of its divisors is an integer number (1096839549).

Almost surely, 2^20220021270 is an apocalyptic number.

20220021270 is an abundant number, since it is smaller than the sum of its proper divisors (32428277082).

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

20220021270 is a wasteful number, since it uses less digits than its factorization.

20220021270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325837 (or 325834 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

Adding to 20220021270 its reverse (7212002202), we get a palindrome (27432023472).

The spelling of 20220021270 in words is "twenty billion, two hundred twenty million, twenty-one thousand, two hundred seventy".