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2212112210020 = 22523297918111597
BaseRepresentation
bin100000001100001100001…
…010011001100001100100
321211110211220101120000121
4200030030022121201210
5242220401211210040
64412121425451324
7315551126353516
oct40141412314144
97743756346017
102212112210020
11783173744709
122b887baa0b44
131307a804530b
14790d143bbb6
153c81e989c4a
hex2030c299864

2212112210020 has 192 divisors, whose sum is σ = 5106534451200. Its totient is φ = 802317035520.

The previous prime is 2212112210017. The next prime is 2212112210039. The reversal of 2212112210020 is 200122112122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2212112209976 and 2212112210003.

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, 190742862 + ... + 190754458.

It is an arithmetic number, because the mean of its divisors is an integer number (26596533600).

Almost surely, 22212112210020 is an apocalyptic number.

2212112210020 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 2212112210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2553267225600).

2212112210020 is an abundant number, since it is smaller than the sum of its proper divisors (2894422241180).

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

2212112210020 is a wasteful number, since it uses less digits than its factorization.

2212112210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11918 (or 11916 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212112210020 its reverse (200122112122), we get a palindrome (2412234322142).

The spelling of 2212112210020 in words is "two trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, twenty".