23220312201020 has 36 divisors (see below), whose sum is σ = 53598621474552. Its totient is φ = 8443749890400.

The previous prime is 23220312200959. The next prime is 23220312201071. The reversal of 23220312201020 is 2010221302232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23220312200983 and 23220312201001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4797582746 + ... + 4797587585.

Almost surely, 2^{23220312201020} is an apocalyptic number.

23220312201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220312201020 is an abundant number, since it is smaller than the sum of its proper divisors (30378309273532).

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

23220312201020 is a wasteful number, since it uses less digits than its factorization.

23220312201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9595170362 (or 9595170349 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23220312201020 its reverse (2010221302232), we get a palindrome (25230533503252).

The spelling of 23220312201020 in words is "twenty-three trillion, two hundred twenty billion, three hundred twelve million, two hundred one thousand, twenty".