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20200111212000 = 2535317195211587
BaseRepresentation
bin1001001011111001101000…
…11101000000010111100000
32122112010000111000100100010
410211330310131000113200
510121424311432241000
6110543445235524520
74153260405166056
oct445746435002740
978463014010303
1020200111212000
116488901188485
122322b00459740
13b36b29670b15
144db99500c1d6
152506b7e76d50
hex125f347405e0

20200111212000 has 384 divisors, whose sum is σ = 73756061084160. Its totient is φ = 4802997657600.

The previous prime is 20200111211989. The next prime is 20200111212011. The reversal of 20200111212000 is 21211100202.

It is an interprime number because it is at equal distance from previous prime (20200111211989) and next prime (20200111212011).

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 63 ways as a sum of consecutive naturals, for example, 1270207 + ... + 6481793.

It is an arithmetic number, because the mean of its divisors is an integer number (192073075740).

Almost surely, 220200111212000 is an apocalyptic number.

20200111212000 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 20200111212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36878030542080).

20200111212000 is an abundant number, since it is smaller than the sum of its proper divisors (53555949872160).

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

20200111212000 is a wasteful number, since it uses less digits than its factorization.

20200111212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211651 (or 5211633 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20200111212000 its reverse (21211100202), we get a palindrome (20221322312202).

The spelling of 20200111212000 in words is "twenty trillion, two hundred billion, one hundred eleven million, two hundred twelve thousand".