20220221101020 has 48 divisors (see below), whose sum is σ = 56616814746240. Its totient is φ = 5392040325696.

The previous prime is 20220221101001. The next prime is 20220221101027. The reversal of 20220221101020 is 2010112202202.

It is a super-3 number, since 3×20220221101020³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220221101027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31872471 + ... + 32500689.

It is an arithmetic number, because the mean of its divisors is an integer number (1179516973880).

Almost surely, 2^{20220221101020} is an apocalyptic number.

20220221101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220221101020 is an abundant number, since it is smaller than the sum of its proper divisors (36396593645220).

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

20220221101020 is a wasteful number, since it uses less digits than its factorization.

20220221101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164674 (or 1164672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20220221101020 its reverse (2010112202202), we get a palindrome (22230333303222).

The spelling of 20220221101020 in words is "twenty trillion, two hundred twenty billion, two hundred twenty-one million, one hundred one thousand, twenty".