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23220120000 = 263547211359
BaseRepresentation
bin10101101000000001…
…101110100111000000
32012221020202022110110
4111220001232213000
5340023322320000
614400035431320
71451262522600
oct255001564700
965836668413
1023220120000
119936174920
124600455540
13226086c39c
1411a3c2ac00
1590d7e0850
hex56806e9c0

23220120000 has 840 divisors, whose sum is σ = 97695227520. Its totient is φ = 4811520000.

The previous prime is 23220119983. The next prime is 23220120017. The reversal of 23220120000 is 2102232.

It is an interprime number because it is at equal distance from previous prime (23220119983) and next prime (23220120017).

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 64679821 + ... + 64680179.

Almost surely, 223220120000 is an apocalyptic number.

23220120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23220120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48847613760).

23220120000 is an abundant number, since it is smaller than the sum of its proper divisors (74475107520).

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

23220120000 is a wasteful number, since it uses less digits than its factorization.

23220120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 23220120000 its reverse (2102232), we get a palindrome (23222222232).

The spelling of 23220120000 in words is "twenty-three billion, two hundred twenty million, one hundred twenty thousand".