23020112021220 has 36 divisors (see below), whose sum is σ = 69827673131580. Its totient is φ = 6138696538944.

The previous prime is 23020112021171. The next prime is 23020112021233. The reversal of 23020112021220 is 2212021102032.

23020112021220 is a `hidden beast` number, since 2 + 302 + 0 + 1 + 120 + 21 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8450195514084 + 14569916507136 = 2906922^2 + 3817056^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 23020112021193 and 23020112021202.

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, 63944755435 + ... + 63944755794.

Almost surely, 2^{23020112021220} is an apocalyptic number.

23020112021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23020112021220 is an abundant number, since it is smaller than the sum of its proper divisors (46807561110360).

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

23020112021220 is a wasteful number, since it uses less digits than its factorization.

23020112021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127889511244 (or 127889511239 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23020112021220 its reverse (2212021102032), we get a palindrome (25232133123252).

The spelling of 23020112021220 in words is "twenty-three trillion, twenty billion, one hundred twelve million, twenty-one thousand, two hundred twenty".